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Finding the Fourth Proportional to 529,575.98, 730,819.74 and 287,859.12

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Solution

The fourth proportional to 529,575.98, 730,819.74 and 287,859.12 is: 397,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,575.98 : 730,819.74 = 287,859.12 : x
  2. Step 2: Convert to fraction form
    529,575.98/730,819.74 = 287,859.12/x
  3. Step 3: Cross multiply
    529,575.98x = 730,819.74 × 287,859.12
  4. Step 4: Simplify right side
    529,575.98x = 210,373,127,235.03
  5. Step 5: Solve for x
    x = 210,373,127,235.03/529,575.98
  6. Step 6: Final answer
    x = 397,248.24

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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.