Home / 1,581,312.20-2,182,207.94-856,159.82

Finding the Fourth Proportional to 1,581,312.20, 2,182,207.94 and 856,159.82

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Solution

The fourth proportional to 1,581,312.20, 2,182,207.94 and 856,159.82 is: 1,181,498.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,312.20 : 2,182,207.94 = 856,159.82 : x
  2. Step 2: Convert to fraction form
    1,581,312.20/2,182,207.94 = 856,159.82/x
  3. Step 3: Cross multiply
    1,581,312.20x = 2,182,207.94 × 856,159.82
  4. Step 4: Simplify right side
    1,581,312.20x = 1,868,318,757,112.97
  5. Step 5: Solve for x
    x = 1,868,318,757,112.97/1,581,312.20
  6. Step 6: Final answer
    x = 1,181,498.98

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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.