Home / 971,339.70-1,457,009.55-380,363.70

Finding the Fourth Proportional to 971,339.70, 1,457,009.55 and 380,363.70

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Solution

The fourth proportional to 971,339.70, 1,457,009.55 and 380,363.70 is: 570,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,339.70 : 1,457,009.55 = 380,363.70 : x
  2. Step 2: Convert to fraction form
    971,339.70/1,457,009.55 = 380,363.70/x
  3. Step 3: Cross multiply
    971,339.70x = 1,457,009.55 × 380,363.70
  4. Step 4: Simplify right side
    971,339.70x = 554,193,543,373.34
  5. Step 5: Solve for x
    x = 554,193,543,373.34/971,339.70
  6. Step 6: Final answer
    x = 570,545.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.