Home / 438,622.60-657,480.30-238,520.20

Finding the Fourth Proportional to 438,622.60, 657,480.30 and 238,520.20

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Solution

The fourth proportional to 438,622.60, 657,480.30 and 238,520.20 is: 357,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,622.60 : 657,480.30 = 238,520.20 : x
  2. Step 2: Convert to fraction form
    438,622.60/657,480.30 = 238,520.20/x
  3. Step 3: Cross multiply
    438,622.60x = 657,480.30 × 238,520.20
  4. Step 4: Simplify right side
    438,622.60x = 156,822,332,652.06
  5. Step 5: Solve for x
    x = 156,822,332,652.06/438,622.60
  6. Step 6: Final answer
    x = 357,533.64

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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.