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Finding the Fourth Proportional to 540,076.32, 745,306.56 and 298,353.60

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Solution

The fourth proportional to 540,076.32, 745,306.56 and 298,353.60 is: 411,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,076.32 : 745,306.56 = 298,353.60 : x
  2. Step 2: Convert to fraction form
    540,076.32/745,306.56 = 298,353.60/x
  3. Step 3: Cross multiply
    540,076.32x = 745,306.56 × 298,353.60
  4. Step 4: Simplify right side
    540,076.32x = 222,364,895,279.62
  5. Step 5: Solve for x
    x = 222,364,895,279.62/540,076.32
  6. Step 6: Final answer
    x = 411,728.65

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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.