Home / 529,020.27-730,047.80-287,302.91

Finding the Fourth Proportional to 529,020.27, 730,047.80 and 287,302.91

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Solution

The fourth proportional to 529,020.27, 730,047.80 and 287,302.91 is: 396,477.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,020.27 : 730,047.80 = 287,302.91 : x
  2. Step 2: Convert to fraction form
    529,020.27/730,047.80 = 287,302.91/x
  3. Step 3: Cross multiply
    529,020.27x = 730,047.80 × 287,302.91
  4. Step 4: Simplify right side
    529,020.27x = 209,744,854,447.12
  5. Step 5: Solve for x
    x = 209,744,854,447.12/529,020.27
  6. Step 6: Final answer
    x = 396,477.92

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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.