Home / 1,137,145.12-1,569,284.76-627,879.76

Finding the Fourth Proportional to 1,137,145.12, 1,569,284.76 and 627,879.76

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Solution

The fourth proportional to 1,137,145.12, 1,569,284.76 and 627,879.76 is: 866,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,145.12 : 1,569,284.76 = 627,879.76 : x
  2. Step 2: Convert to fraction form
    1,137,145.12/1,569,284.76 = 627,879.76/x
  3. Step 3: Cross multiply
    1,137,145.12x = 1,569,284.76 × 627,879.76
  4. Step 4: Simplify right side
    1,137,145.12x = 985,322,138,480.46
  5. Step 5: Solve for x
    x = 985,322,138,480.46/1,137,145.12
  6. Step 6: Final answer
    x = 866,487.59

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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.