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Finding the Fourth Proportional to 658,632.57, 908,889.75 and 372,146.46

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Solution

The fourth proportional to 658,632.57, 908,889.75 and 372,146.46 is: 513,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,632.57 : 908,889.75 = 372,146.46 : x
  2. Step 2: Convert to fraction form
    658,632.57/908,889.75 = 372,146.46/x
  3. Step 3: Cross multiply
    658,632.57x = 908,889.75 × 372,146.46
  4. Step 4: Simplify right side
    658,632.57x = 338,240,102,992.79
  5. Step 5: Solve for x
    x = 338,240,102,992.79/658,632.57
  6. Step 6: Final answer
    x = 513,549.01

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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.