Home / 1,255,284.18-1,732,285.17-711,522.78

Finding the Fourth Proportional to 1,255,284.18, 1,732,285.17 and 711,522.78

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Solution

The fourth proportional to 1,255,284.18, 1,732,285.17 and 711,522.78 is: 981,897.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,284.18 : 1,732,285.17 = 711,522.78 : x
  2. Step 2: Convert to fraction form
    1,255,284.18/1,732,285.17 = 711,522.78/x
  3. Step 3: Cross multiply
    1,255,284.18x = 1,732,285.17 × 711,522.78
  4. Step 4: Simplify right side
    1,255,284.18x = 1,232,560,359,911.17
  5. Step 5: Solve for x
    x = 1,232,560,359,911.17/1,255,284.18
  6. Step 6: Final answer
    x = 981,897.47

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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.