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Finding the Fourth Proportional to 529,859.52, 731,196 and 291,395.52

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Solution

The fourth proportional to 529,859.52, 731,196 and 291,395.52 is: 402,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,859.52 : 731,196 = 291,395.52 : x
  2. Step 2: Convert to fraction form
    529,859.52/731,196 = 291,395.52/x
  3. Step 3: Cross multiply
    529,859.52x = 731,196 × 291,395.52
  4. Step 4: Simplify right side
    529,859.52x = 213,067,238,641.92
  5. Step 5: Solve for x
    x = 213,067,238,641.92/529,859.52
  6. Step 6: Final answer
    x = 402,120.24

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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.