Home / 487,540.10-731,018.55-251,344.10

Finding the Fourth Proportional to 487,540.10, 731,018.55 and 251,344.10

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Solution

The fourth proportional to 487,540.10, 731,018.55 and 251,344.10 is: 376,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,540.10 : 731,018.55 = 251,344.10 : x
  2. Step 2: Convert to fraction form
    487,540.10/731,018.55 = 251,344.10/x
  3. Step 3: Cross multiply
    487,540.10x = 731,018.55 × 251,344.10
  4. Step 4: Simplify right side
    487,540.10x = 183,737,199,533.06
  5. Step 5: Solve for x
    x = 183,737,199,533.06/487,540.10
  6. Step 6: Final answer
    x = 376,865.82

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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.