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Finding the Fourth Proportional to 602,713.28, 901,911.30 and 521,940.08

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Solution

The fourth proportional to 602,713.28, 901,911.30 and 521,940.08 is: 781,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,713.28 : 901,911.30 = 521,940.08 : x
  2. Step 2: Convert to fraction form
    602,713.28/901,911.30 = 521,940.08/x
  3. Step 3: Cross multiply
    602,713.28x = 901,911.30 × 521,940.08
  4. Step 4: Simplify right side
    602,713.28x = 470,743,656,074.90
  5. Step 5: Solve for x
    x = 470,743,656,074.90/602,713.28
  6. Step 6: Final answer
    x = 781,040.79

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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.