Home / 460,611.43-690,393.04-280,299.17

Finding the Fourth Proportional to 460,611.43, 690,393.04 and 280,299.17

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Solution

The fourth proportional to 460,611.43, 690,393.04 and 280,299.17 is: 420,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,611.43 : 690,393.04 = 280,299.17 : x
  2. Step 2: Convert to fraction form
    460,611.43/690,393.04 = 280,299.17/x
  3. Step 3: Cross multiply
    460,611.43x = 690,393.04 × 280,299.17
  4. Step 4: Simplify right side
    460,611.43x = 193,516,597,111.01
  5. Step 5: Solve for x
    x = 193,516,597,111.01/460,611.43
  6. Step 6: Final answer
    x = 420,129.82

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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.