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Finding the Fourth Proportional to 658,614.23, 908,881.93 and 356,807.51

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Solution

The fourth proportional to 658,614.23, 908,881.93 and 356,807.51 is: 492,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,614.23 : 908,881.93 = 356,807.51 : x
  2. Step 2: Convert to fraction form
    658,614.23/908,881.93 = 356,807.51/x
  3. Step 3: Cross multiply
    658,614.23x = 908,881.93 × 356,807.51
  4. Step 4: Simplify right side
    658,614.23x = 324,295,898,327.29
  5. Step 5: Solve for x
    x = 324,295,898,327.29/658,614.23
  6. Step 6: Final answer
    x = 492,391.27

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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.