Home / 498,125.28-687,384.72-283,317.60

Finding the Fourth Proportional to 498,125.28, 687,384.72 and 283,317.60

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Solution

The fourth proportional to 498,125.28, 687,384.72 and 283,317.60 is: 390,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,125.28 : 687,384.72 = 283,317.60 : x
  2. Step 2: Convert to fraction form
    498,125.28/687,384.72 = 283,317.60/x
  3. Step 3: Cross multiply
    498,125.28x = 687,384.72 × 283,317.60
  4. Step 4: Simplify right side
    498,125.28x = 194,748,189,147.07
  5. Step 5: Solve for x
    x = 194,748,189,147.07/498,125.28
  6. Step 6: Final answer
    x = 390,962.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.