Home / 498,847.20-688,383.36-272,448.96

Finding the Fourth Proportional to 498,847.20, 688,383.36 and 272,448.96

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Solution

The fourth proportional to 498,847.20, 688,383.36 and 272,448.96 is: 375,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,847.20 : 688,383.36 = 272,448.96 : x
  2. Step 2: Convert to fraction form
    498,847.20/688,383.36 = 272,448.96/x
  3. Step 3: Cross multiply
    498,847.20x = 688,383.36 × 272,448.96
  4. Step 4: Simplify right side
    498,847.20x = 187,549,330,513.31
  5. Step 5: Solve for x
    x = 187,549,330,513.31/498,847.20
  6. Step 6: Final answer
    x = 375,965.49

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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.