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Finding the Fourth Proportional to 529,702.40, 730,273.76 and 359,641.28

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Solution

The fourth proportional to 529,702.40, 730,273.76 and 359,641.28 is: 495,819.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,702.40 : 730,273.76 = 359,641.28 : x
  2. Step 2: Convert to fraction form
    529,702.40/730,273.76 = 359,641.28/x
  3. Step 3: Cross multiply
    529,702.40x = 730,273.76 × 359,641.28
  4. Step 4: Simplify right side
    529,702.40x = 262,636,589,796.81
  5. Step 5: Solve for x
    x = 262,636,589,796.81/529,702.40
  6. Step 6: Final answer
    x = 495,819.14

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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.