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Finding the Fourth Proportional to 658,457.06, 908,670.42 and 386,524.96

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Solution

The fourth proportional to 658,457.06, 908,670.42 and 386,524.96 is: 533,404.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,457.06 : 908,670.42 = 386,524.96 : x
  2. Step 2: Convert to fraction form
    658,457.06/908,670.42 = 386,524.96/x
  3. Step 3: Cross multiply
    658,457.06x = 908,670.42 × 386,524.96
  4. Step 4: Simplify right side
    658,457.06x = 351,223,796,921.48
  5. Step 5: Solve for x
    x = 351,223,796,921.48/658,457.06
  6. Step 6: Final answer
    x = 533,404.25

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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.