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Finding the Fourth Proportional to 508,561.49, 762,842.23 and 396,325.68

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Solution

The fourth proportional to 508,561.49, 762,842.23 and 396,325.68 is: 594,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,561.49 : 762,842.23 = 396,325.68 : x
  2. Step 2: Convert to fraction form
    508,561.49/762,842.23 = 396,325.68/x
  3. Step 3: Cross multiply
    508,561.49x = 762,842.23 × 396,325.68
  4. Step 4: Simplify right side
    508,561.49x = 302,333,962,800.66
  5. Step 5: Solve for x
    x = 302,333,962,800.66/508,561.49
  6. Step 6: Final answer
    x = 594,488.51

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Double scale
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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.