Home / 1,438,948.87-1,985,630.22-818,589.04

Finding the Fourth Proportional to 1,438,948.87, 1,985,630.22 and 818,589.04

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Solution

The fourth proportional to 1,438,948.87, 1,985,630.22 and 818,589.04 is: 1,129,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,948.87 : 1,985,630.22 = 818,589.04 : x
  2. Step 2: Convert to fraction form
    1,438,948.87/1,985,630.22 = 818,589.04/x
  3. Step 3: Cross multiply
    1,438,948.87x = 1,985,630.22 × 818,589.04
  4. Step 4: Simplify right side
    1,438,948.87x = 1,625,415,130,620.71
  5. Step 5: Solve for x
    x = 1,625,415,130,620.71/1,438,948.87
  6. Step 6: Final answer
    x = 1,129,585.05

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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.