Home / 1,123,853.70-1,685,780.55-651,753.30

Finding the Fourth Proportional to 1,123,853.70, 1,685,780.55 and 651,753.30

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Solution

The fourth proportional to 1,123,853.70, 1,685,780.55 and 651,753.30 is: 977,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,853.70 : 1,685,780.55 = 651,753.30 : x
  2. Step 2: Convert to fraction form
    1,123,853.70/1,685,780.55 = 651,753.30/x
  3. Step 3: Cross multiply
    1,123,853.70x = 1,685,780.55 × 651,753.30
  4. Step 4: Simplify right side
    1,123,853.70x = 1,098,713,036,538.32
  5. Step 5: Solve for x
    x = 1,098,713,036,538.32/1,123,853.70
  6. Step 6: Final answer
    x = 977,629.95

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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.