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Finding the Fourth Proportional to 398,545.68, 597,927.87 and 198,624.72

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Solution

The fourth proportional to 398,545.68, 597,927.87 and 198,624.72 is: 297,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,545.68 : 597,927.87 = 198,624.72 : x
  2. Step 2: Convert to fraction form
    398,545.68/597,927.87 = 198,624.72/x
  3. Step 3: Cross multiply
    398,545.68x = 597,927.87 × 198,624.72
  4. Step 4: Simplify right side
    398,545.68x = 118,763,255,758.95
  5. Step 5: Solve for x
    x = 118,763,255,758.95/398,545.68
  6. Step 6: Final answer
    x = 297,991.58

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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.