Home / 410,943.79-615,419.20-284,228.40

Finding the Fourth Proportional to 410,943.79, 615,419.20 and 284,228.40

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Solution

The fourth proportional to 410,943.79, 615,419.20 and 284,228.40 is: 425,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,943.79 : 615,419.20 = 284,228.40 : x
  2. Step 2: Convert to fraction form
    410,943.79/615,419.20 = 284,228.40/x
  3. Step 3: Cross multiply
    410,943.79x = 615,419.20 × 284,228.40
  4. Step 4: Simplify right side
    410,943.79x = 174,919,614,545.28
  5. Step 5: Solve for x
    x = 174,919,614,545.28/410,943.79
  6. Step 6: Final answer
    x = 425,653.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.