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Finding the Fourth Proportional to 396,007.20, 592,844.40 and 372,938.40

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Solution

The fourth proportional to 396,007.20, 592,844.40 and 372,938.40 is: 558,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,007.20 : 592,844.40 = 372,938.40 : x
  2. Step 2: Convert to fraction form
    396,007.20/592,844.40 = 372,938.40/x
  3. Step 3: Cross multiply
    396,007.20x = 592,844.40 × 372,938.40
  4. Step 4: Simplify right side
    396,007.20x = 221,094,441,984.96
  5. Step 5: Solve for x
    x = 221,094,441,984.96/396,007.20
  6. Step 6: Final answer
    x = 558,309.15

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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.