Home / 1,036,123.20-1,555,244.90-855,633.74

Finding the Fourth Proportional to 1,036,123.20, 1,555,244.90 and 855,633.74

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Solution

The fourth proportional to 1,036,123.20, 1,555,244.90 and 855,633.74 is: 1,284,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,123.20 : 1,555,244.90 = 855,633.74 : x
  2. Step 2: Convert to fraction form
    1,036,123.20/1,555,244.90 = 855,633.74/x
  3. Step 3: Cross multiply
    1,036,123.20x = 1,555,244.90 × 855,633.74
  4. Step 4: Simplify right side
    1,036,123.20x = 1,330,720,010,402.93
  5. Step 5: Solve for x
    x = 1,330,720,010,402.93/1,036,123.20
  6. Step 6: Final answer
    x = 1,284,326.04

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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.