Home / 1,087,326.90-1,627,879.95-667,422.90

Finding the Fourth Proportional to 1,087,326.90, 1,627,879.95 and 667,422.90

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Solution

The fourth proportional to 1,087,326.90, 1,627,879.95 and 667,422.90 is: 999,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,326.90 : 1,627,879.95 = 667,422.90 : x
  2. Step 2: Convert to fraction form
    1,087,326.90/1,627,879.95 = 667,422.90/x
  3. Step 3: Cross multiply
    1,087,326.90x = 1,627,879.95 × 667,422.90
  4. Step 4: Simplify right side
    1,087,326.90x = 1,086,484,357,080.86
  5. Step 5: Solve for x
    x = 1,086,484,357,080.86/1,087,326.90
  6. Step 6: Final answer
    x = 999,225.12

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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.