Home / 1,119,785.70-1,679,678.55-558,747.30

Finding the Fourth Proportional to 1,119,785.70, 1,679,678.55 and 558,747.30

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Solution

The fourth proportional to 1,119,785.70, 1,679,678.55 and 558,747.30 is: 838,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,785.70 : 1,679,678.55 = 558,747.30 : x
  2. Step 2: Convert to fraction form
    1,119,785.70/1,679,678.55 = 558,747.30/x
  3. Step 3: Cross multiply
    1,119,785.70x = 1,679,678.55 × 558,747.30
  4. Step 4: Simplify right side
    1,119,785.70x = 938,515,854,680.42
  5. Step 5: Solve for x
    x = 938,515,854,680.42/1,119,785.70
  6. Step 6: Final answer
    x = 838,120.95

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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.