Home / 1,345,871.90-1,856,834.22-862,703.46

Finding the Fourth Proportional to 1,345,871.90, 1,856,834.22 and 862,703.46

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Solution

The fourth proportional to 1,345,871.90, 1,856,834.22 and 862,703.46 is: 1,190,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,871.90 : 1,856,834.22 = 862,703.46 : x
  2. Step 2: Convert to fraction form
    1,345,871.90/1,856,834.22 = 862,703.46/x
  3. Step 3: Cross multiply
    1,345,871.90x = 1,856,834.22 × 862,703.46
  4. Step 4: Simplify right side
    1,345,871.90x = 1,601,897,306,240.40
  5. Step 5: Solve for x
    x = 1,601,897,306,240.40/1,345,871.90
  6. Step 6: Final answer
    x = 1,190,230.15

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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.