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Finding the Fourth Proportional to 529,062.88, 730,112.04 and 287,350.16

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Solution

The fourth proportional to 529,062.88, 730,112.04 and 287,350.16 is: 396,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,062.88 : 730,112.04 = 287,350.16 : x
  2. Step 2: Convert to fraction form
    529,062.88/730,112.04 = 287,350.16/x
  3. Step 3: Cross multiply
    529,062.88x = 730,112.04 × 287,350.16
  4. Step 4: Simplify right side
    529,062.88x = 209,797,811,511.93
  5. Step 5: Solve for x
    x = 209,797,811,511.93/529,062.88
  6. Step 6: Final answer
    x = 396,546.08

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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.