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Finding the Fourth Proportional to 610,734.78, 916,235.01 and 255,565.98

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Solution

The fourth proportional to 610,734.78, 916,235.01 and 255,565.98 is: 383,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,734.78 : 916,235.01 = 255,565.98 : x
  2. Step 2: Convert to fraction form
    610,734.78/916,235.01 = 255,565.98/x
  3. Step 3: Cross multiply
    610,734.78x = 916,235.01 × 255,565.98
  4. Step 4: Simplify right side
    610,734.78x = 234,158,498,240.96
  5. Step 5: Solve for x
    x = 234,158,498,240.96/610,734.78
  6. Step 6: Final answer
    x = 383,404.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.