Home / 689,912.10-1,034,868.15-657,252.90

Finding the Fourth Proportional to 689,912.10, 1,034,868.15 and 657,252.90

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Solution

The fourth proportional to 689,912.10, 1,034,868.15 and 657,252.90 is: 985,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,912.10 : 1,034,868.15 = 657,252.90 : x
  2. Step 2: Convert to fraction form
    689,912.10/1,034,868.15 = 657,252.90/x
  3. Step 3: Cross multiply
    689,912.10x = 1,034,868.15 × 657,252.90
  4. Step 4: Simplify right side
    689,912.10x = 680,170,092,705.14
  5. Step 5: Solve for x
    x = 680,170,092,705.14/689,912.10
  6. Step 6: Final answer
    x = 985,879.35

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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.