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Finding the Fourth Proportional to 568,522.01, 784,539.78 and 310,394.20

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Solution

The fourth proportional to 568,522.01, 784,539.78 and 310,394.20 is: 428,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,522.01 : 784,539.78 = 310,394.20 : x
  2. Step 2: Convert to fraction form
    568,522.01/784,539.78 = 310,394.20/x
  3. Step 3: Cross multiply
    568,522.01x = 784,539.78 × 310,394.20
  4. Step 4: Simplify right side
    568,522.01x = 243,516,599,174.64
  5. Step 5: Solve for x
    x = 243,516,599,174.64/568,522.01
  6. Step 6: Final answer
    x = 428,332.75

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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.