Home / 862,475.64-1,287,649.20-659,006.88

Finding the Fourth Proportional to 862,475.64, 1,287,649.20 and 659,006.88

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Solution

The fourth proportional to 862,475.64, 1,287,649.20 and 659,006.88 is: 983,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,475.64 : 1,287,649.20 = 659,006.88 : x
  2. Step 2: Convert to fraction form
    862,475.64/1,287,649.20 = 659,006.88/x
  3. Step 3: Cross multiply
    862,475.64x = 1,287,649.20 × 659,006.88
  4. Step 4: Simplify right side
    862,475.64x = 848,569,683,474.01
  5. Step 5: Solve for x
    x = 848,569,683,474.01/862,475.64
  6. Step 6: Final answer
    x = 983,876.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.