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Finding the Fourth Proportional to 487,542.60, 731,022.30 and 251,346.60

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Solution

The fourth proportional to 487,542.60, 731,022.30 and 251,346.60 is: 376,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,542.60 : 731,022.30 = 251,346.60 : x
  2. Step 2: Convert to fraction form
    487,542.60/731,022.30 = 251,346.60/x
  3. Step 3: Cross multiply
    487,542.60x = 731,022.30 × 251,346.60
  4. Step 4: Simplify right side
    487,542.60x = 183,739,969,629.18
  5. Step 5: Solve for x
    x = 183,739,969,629.18/487,542.60
  6. Step 6: Final answer
    x = 376,869.57

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1.5x scale

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.