Home / 487,913.40-731,286.90-251,134.20

Finding the Fourth Proportional to 487,913.40, 731,286.90 and 251,134.20

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Solution

The fourth proportional to 487,913.40, 731,286.90 and 251,134.20 is: 376,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,913.40 : 731,286.90 = 251,134.20 : x
  2. Step 2: Convert to fraction form
    487,913.40/731,286.90 = 251,134.20/x
  3. Step 3: Cross multiply
    487,913.40x = 731,286.90 × 251,134.20
  4. Step 4: Simplify right side
    487,913.40x = 183,651,150,601.98
  5. Step 5: Solve for x
    x = 183,651,150,601.98/487,913.40
  6. Step 6: Final answer
    x = 376,401.12

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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.