Home / 438,845.20-658,267.80-367,986.40

Finding the Fourth Proportional to 438,845.20, 658,267.80 and 367,986.40

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Solution

The fourth proportional to 438,845.20, 658,267.80 and 367,986.40 is: 551,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,845.20 : 658,267.80 = 367,986.40 : x
  2. Step 2: Convert to fraction form
    438,845.20/658,267.80 = 367,986.40/x
  3. Step 3: Cross multiply
    438,845.20x = 658,267.80 × 367,986.40
  4. Step 4: Simplify right side
    438,845.20x = 242,233,597,957.92
  5. Step 5: Solve for x
    x = 242,233,597,957.92/438,845.20
  6. Step 6: Final answer
    x = 551,979.60

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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.