Home / 970,363.60-1,455,545.40-438,139.60

Finding the Fourth Proportional to 970,363.60, 1,455,545.40 and 438,139.60

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Solution

The fourth proportional to 970,363.60, 1,455,545.40 and 438,139.60 is: 657,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,363.60 : 1,455,545.40 = 438,139.60 : x
  2. Step 2: Convert to fraction form
    970,363.60/1,455,545.40 = 438,139.60/x
  3. Step 3: Cross multiply
    970,363.60x = 1,455,545.40 × 438,139.60
  4. Step 4: Simplify right side
    970,363.60x = 637,732,079,337.84
  5. Step 5: Solve for x
    x = 637,732,079,337.84/970,363.60
  6. Step 6: Final answer
    x = 657,209.40

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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.