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Finding the Fourth Proportional to 658,670.96, 908,967.12 and 356,864.96

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Solution

The fourth proportional to 658,670.96, 908,967.12 and 356,864.96 is: 492,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,670.96 : 908,967.12 = 356,864.96 : x
  2. Step 2: Convert to fraction form
    658,670.96/908,967.12 = 356,864.96/x
  3. Step 3: Cross multiply
    658,670.96x = 908,967.12 × 356,864.96
  4. Step 4: Simplify right side
    658,670.96x = 324,378,514,920.12
  5. Step 5: Solve for x
    x = 324,378,514,920.12/658,670.96
  6. Step 6: Final answer
    x = 492,474.29

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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.