Home / 457,117.04-686,117.83-220,626.20

Finding the Fourth Proportional to 457,117.04, 686,117.83 and 220,626.20

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Solution

The fourth proportional to 457,117.04, 686,117.83 and 220,626.20 is: 331,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,117.04 : 686,117.83 = 220,626.20 : x
  2. Step 2: Convert to fraction form
    457,117.04/686,117.83 = 220,626.20/x
  3. Step 3: Cross multiply
    457,117.04x = 686,117.83 × 220,626.20
  4. Step 4: Simplify right side
    457,117.04x = 151,375,569,585.15
  5. Step 5: Solve for x
    x = 151,375,569,585.15/457,117.04
  6. Step 6: Final answer
    x = 331,152.76

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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.