Home / 567,129.08-782,628.28-309,008.18

Finding the Fourth Proportional to 567,129.08, 782,628.28 and 309,008.18

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Solution

The fourth proportional to 567,129.08, 782,628.28 and 309,008.18 is: 426,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,129.08 : 782,628.28 = 309,008.18 : x
  2. Step 2: Convert to fraction form
    567,129.08/782,628.28 = 309,008.18/x
  3. Step 3: Cross multiply
    567,129.08x = 782,628.28 × 309,008.18
  4. Step 4: Simplify right side
    567,129.08x = 241,838,541,603.38
  5. Step 5: Solve for x
    x = 241,838,541,603.38/567,129.08
  6. Step 6: Final answer
    x = 426,425.92

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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.