Home / 487,621.60-731,432.40-251,425.60

Finding the Fourth Proportional to 487,621.60, 731,432.40 and 251,425.60

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Solution

The fourth proportional to 487,621.60, 731,432.40 and 251,425.60 is: 377,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,621.60 : 731,432.40 = 251,425.60 : x
  2. Step 2: Convert to fraction form
    487,621.60/731,432.40 = 251,425.60/x
  3. Step 3: Cross multiply
    487,621.60x = 731,432.40 × 251,425.60
  4. Step 4: Simplify right side
    487,621.60x = 183,900,830,029.44
  5. Step 5: Solve for x
    x = 183,900,830,029.44/487,621.60
  6. Step 6: Final answer
    x = 377,138.40

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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.