Home / 521,017.20-781,416.45-146,952.72

Finding the Fourth Proportional to 521,017.20, 781,416.45 and 146,952.72

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Solution

The fourth proportional to 521,017.20, 781,416.45 and 146,952.72 is: 220,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,017.20 : 781,416.45 = 146,952.72 : x
  2. Step 2: Convert to fraction form
    521,017.20/781,416.45 = 146,952.72/x
  3. Step 3: Cross multiply
    521,017.20x = 781,416.45 × 146,952.72
  4. Step 4: Simplify right side
    521,017.20x = 114,831,273,940.71
  5. Step 5: Solve for x
    x = 114,831,273,940.71/521,017.20
  6. Step 6: Final answer
    x = 220,398.24

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1.5x scale

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.