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Finding the Fourth Proportional to 659,600.15, 989,545.41 and 375,424.40

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Solution

The fourth proportional to 659,600.15, 989,545.41 and 375,424.40 is: 563,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,600.15 : 989,545.41 = 375,424.40 : x
  2. Step 2: Convert to fraction form
    659,600.15/989,545.41 = 375,424.40/x
  3. Step 3: Cross multiply
    659,600.15x = 989,545.41 × 375,424.40
  4. Step 4: Simplify right side
    659,600.15x = 371,499,494,295.87
  5. Step 5: Solve for x
    x = 371,499,494,295.87/659,600.15
  6. Step 6: Final answer
    x = 563,219.24

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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.