Home / 529,302.80-730,438.66-287,585.29

Finding the Fourth Proportional to 529,302.80, 730,438.66 and 287,585.29

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Solution

The fourth proportional to 529,302.80, 730,438.66 and 287,585.29 is: 396,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,302.80 : 730,438.66 = 287,585.29 : x
  2. Step 2: Convert to fraction form
    529,302.80/730,438.66 = 287,585.29/x
  3. Step 3: Cross multiply
    529,302.80x = 730,438.66 × 287,585.29
  4. Step 4: Simplify right side
    529,302.80x = 210,063,411,027.12
  5. Step 5: Solve for x
    x = 210,063,411,027.12/529,302.80
  6. Step 6: Final answer
    x = 396,868.13

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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.