Home / 1,581,476.50-2,182,438.74-856,324.72

Finding the Fourth Proportional to 1,581,476.50, 2,182,438.74 and 856,324.72

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Solution

The fourth proportional to 1,581,476.50, 2,182,438.74 and 856,324.72 is: 1,181,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,476.50 : 2,182,438.74 = 856,324.72 : x
  2. Step 2: Convert to fraction form
    1,581,476.50/2,182,438.74 = 856,324.72/x
  3. Step 3: Cross multiply
    1,581,476.50x = 2,182,438.74 × 856,324.72
  4. Step 4: Simplify right side
    1,581,476.50x = 1,868,876,242,947.65
  5. Step 5: Solve for x
    x = 1,868,876,242,947.65/1,581,476.50
  6. Step 6: Final answer
    x = 1,181,728.75

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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.