Home / 1,129,344.12-1,558,050.39-645,649.38

Finding the Fourth Proportional to 1,129,344.12, 1,558,050.39 and 645,649.38

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Solution

The fourth proportional to 1,129,344.12, 1,558,050.39 and 645,649.38 is: 890,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,344.12 : 1,558,050.39 = 645,649.38 : x
  2. Step 2: Convert to fraction form
    1,129,344.12/1,558,050.39 = 645,649.38/x
  3. Step 3: Cross multiply
    1,129,344.12x = 1,558,050.39 × 645,649.38
  4. Step 4: Simplify right side
    1,129,344.12x = 1,005,954,268,312.26
  5. Step 5: Solve for x
    x = 1,005,954,268,312.26/1,129,344.12
  6. Step 6: Final answer
    x = 890,742.02

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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.