Home / 867,101.70-1,300,652.55-493,853.70

Finding the Fourth Proportional to 867,101.70, 1,300,652.55 and 493,853.70

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Solution

The fourth proportional to 867,101.70, 1,300,652.55 and 493,853.70 is: 740,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,101.70 : 1,300,652.55 = 493,853.70 : x
  2. Step 2: Convert to fraction form
    867,101.70/1,300,652.55 = 493,853.70/x
  3. Step 3: Cross multiply
    867,101.70x = 1,300,652.55 × 493,853.70
  4. Step 4: Simplify right side
    867,101.70x = 642,332,074,231.94
  5. Step 5: Solve for x
    x = 642,332,074,231.94/867,101.70
  6. Step 6: Final answer
    x = 740,780.55

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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.