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Finding the Fourth Proportional to 508,345.20, 702,246.60 and 406,236.96

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Solution

The fourth proportional to 508,345.20, 702,246.60 and 406,236.96 is: 561,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,345.20 : 702,246.60 = 406,236.96 : x
  2. Step 2: Convert to fraction form
    508,345.20/702,246.60 = 406,236.96/x
  3. Step 3: Cross multiply
    508,345.20x = 702,246.60 × 406,236.96
  4. Step 4: Simplify right side
    508,345.20x = 285,278,523,954.34
  5. Step 5: Solve for x
    x = 285,278,523,954.34/508,345.20
  6. Step 6: Final answer
    x = 561,190.55

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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.