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Finding the Fourth Proportional to 529,534.71, 730,762.38 and 287,817.24

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Solution

The fourth proportional to 529,534.71, 730,762.38 and 287,817.24 is: 397,190.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,534.71 : 730,762.38 = 287,817.24 : x
  2. Step 2: Convert to fraction form
    529,534.71/730,762.38 = 287,817.24/x
  3. Step 3: Cross multiply
    529,534.71x = 730,762.38 × 287,817.24
  4. Step 4: Simplify right side
    529,534.71x = 210,326,011,307.43
  5. Step 5: Solve for x
    x = 210,326,011,307.43/529,534.71
  6. Step 6: Final answer
    x = 397,190.23

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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.