Home / 1,345,872.40-1,856,834.91-862,703.96

Finding the Fourth Proportional to 1,345,872.40, 1,856,834.91 and 862,703.96

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Solution

The fourth proportional to 1,345,872.40, 1,856,834.91 and 862,703.96 is: 1,190,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,872.40 : 1,856,834.91 = 862,703.96 : x
  2. Step 2: Convert to fraction form
    1,345,872.40/1,856,834.91 = 862,703.96/x
  3. Step 3: Cross multiply
    1,345,872.40x = 1,856,834.91 × 862,703.96
  4. Step 4: Simplify right side
    1,345,872.40x = 1,601,898,829,923.24
  5. Step 5: Solve for x
    x = 1,601,898,829,923.24/1,345,872.40
  6. Step 6: Final answer
    x = 1,190,230.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.