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Finding the Fourth Proportional to 659,446.39, 989,325.06 and 525,018.67

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Solution

The fourth proportional to 659,446.39, 989,325.06 and 525,018.67 is: 787,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,446.39 : 989,325.06 = 525,018.67 : x
  2. Step 2: Convert to fraction form
    659,446.39/989,325.06 = 525,018.67/x
  3. Step 3: Cross multiply
    659,446.39x = 989,325.06 × 525,018.67
  4. Step 4: Simplify right side
    659,446.39x = 519,414,122,252.25
  5. Step 5: Solve for x
    x = 519,414,122,252.25/659,446.39
  6. Step 6: Final answer
    x = 787,651.78

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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.