Home / 745,144.04-1,028,321.46-527,742.20

Finding the Fourth Proportional to 745,144.04, 1,028,321.46 and 527,742.20

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Solution

The fourth proportional to 745,144.04, 1,028,321.46 and 527,742.20 is: 728,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,144.04 : 1,028,321.46 = 527,742.20 : x
  2. Step 2: Convert to fraction form
    745,144.04/1,028,321.46 = 527,742.20/x
  3. Step 3: Cross multiply
    745,144.04x = 1,028,321.46 × 527,742.20
  4. Step 4: Simplify right side
    745,144.04x = 542,688,629,607.61
  5. Step 5: Solve for x
    x = 542,688,629,607.61/745,144.04
  6. Step 6: Final answer
    x = 728,300.30

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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.