Home / 1,008,487.61-1,391,712.88-555,778.61

Finding the Fourth Proportional to 1,008,487.61, 1,391,712.88 and 555,778.61

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Solution

The fourth proportional to 1,008,487.61, 1,391,712.88 and 555,778.61 is: 766,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,487.61 : 1,391,712.88 = 555,778.61 : x
  2. Step 2: Convert to fraction form
    1,008,487.61/1,391,712.88 = 555,778.61/x
  3. Step 3: Cross multiply
    1,008,487.61x = 1,391,712.88 × 555,778.61
  4. Step 4: Simplify right side
    1,008,487.61x = 773,484,253,444.78
  5. Step 5: Solve for x
    x = 773,484,253,444.78/1,008,487.61
  6. Step 6: Final answer
    x = 766,974.47

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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.