Home / 784,242.11-1,081,389.65-542,104.31

Finding the Fourth Proportional to 784,242.11, 1,081,389.65 and 542,104.31

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Solution

The fourth proportional to 784,242.11, 1,081,389.65 and 542,104.31 is: 747,506.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,242.11 : 1,081,389.65 = 542,104.31 : x
  2. Step 2: Convert to fraction form
    784,242.11/1,081,389.65 = 542,104.31/x
  3. Step 3: Cross multiply
    784,242.11x = 1,081,389.65 × 542,104.31
  4. Step 4: Simplify right side
    784,242.11x = 586,225,981,936.92
  5. Step 5: Solve for x
    x = 586,225,981,936.92/784,242.11
  6. Step 6: Final answer
    x = 747,506.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.