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Finding the Fourth Proportional to 658,505.64, 908,783.46 and 371,921.16

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Solution

The fourth proportional to 658,505.64, 908,783.46 and 371,921.16 is: 513,277.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,505.64 : 908,783.46 = 371,921.16 : x
  2. Step 2: Convert to fraction form
    658,505.64/908,783.46 = 371,921.16/x
  3. Step 3: Cross multiply
    658,505.64x = 908,783.46 × 371,921.16
  4. Step 4: Simplify right side
    658,505.64x = 337,995,798,632.01
  5. Step 5: Solve for x
    x = 337,995,798,632.01/658,505.64
  6. Step 6: Final answer
    x = 513,277.00

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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.