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Finding the Fourth Proportional to 559,951.10, 839,270.55 and 419,545.70

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Solution

The fourth proportional to 559,951.10, 839,270.55 and 419,545.70 is: 628,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,951.10 : 839,270.55 = 419,545.70 : x
  2. Step 2: Convert to fraction form
    559,951.10/839,270.55 = 419,545.70/x
  3. Step 3: Cross multiply
    559,951.10x = 839,270.55 × 419,545.70
  4. Step 4: Simplify right side
    559,951.10x = 352,112,350,389.14
  5. Step 5: Solve for x
    x = 352,112,350,389.14/559,951.10
  6. Step 6: Final answer
    x = 628,826.96

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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.