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Finding the Fourth Proportional to 609,177.28, 840,752.58 and 351,004.78

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Solution

The fourth proportional to 609,177.28, 840,752.58 and 351,004.78 is: 484,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,177.28 : 840,752.58 = 351,004.78 : x
  2. Step 2: Convert to fraction form
    609,177.28/840,752.58 = 351,004.78/x
  3. Step 3: Cross multiply
    609,177.28x = 840,752.58 × 351,004.78
  4. Step 4: Simplify right side
    609,177.28x = 295,108,174,377.33
  5. Step 5: Solve for x
    x = 295,108,174,377.33/609,177.28
  6. Step 6: Final answer
    x = 484,437.26

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1.5x scale

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.