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Finding the Fourth Proportional to 515,224.56, 710,940.12 and 297,440.88

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Solution

The fourth proportional to 515,224.56, 710,940.12 and 297,440.88 is: 410,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,224.56 : 710,940.12 = 297,440.88 : x
  2. Step 2: Convert to fraction form
    515,224.56/710,940.12 = 297,440.88/x
  3. Step 3: Cross multiply
    515,224.56x = 710,940.12 × 297,440.88
  4. Step 4: Simplify right side
    515,224.56x = 211,462,654,920.11
  5. Step 5: Solve for x
    x = 211,462,654,920.11/515,224.56
  6. Step 6: Final answer
    x = 410,428.13

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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.