Home / 487,643.10-731,464.65-251,447.10

Finding the Fourth Proportional to 487,643.10, 731,464.65 and 251,447.10

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Solution

The fourth proportional to 487,643.10, 731,464.65 and 251,447.10 is: 377,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,643.10 : 731,464.65 = 251,447.10 : x
  2. Step 2: Convert to fraction form
    487,643.10/731,464.65 = 251,447.10/x
  3. Step 3: Cross multiply
    487,643.10x = 731,464.65 × 251,447.10
  4. Step 4: Simplify right side
    487,643.10x = 183,924,664,995.02
  5. Step 5: Solve for x
    x = 183,924,664,995.02/487,643.10
  6. Step 6: Final answer
    x = 377,170.65

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Similar ratio
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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.