Home / 1,087,338.40-1,627,897.20-667,434.40

Finding the Fourth Proportional to 1,087,338.40, 1,627,897.20 and 667,434.40

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Solution

The fourth proportional to 1,087,338.40, 1,627,897.20 and 667,434.40 is: 999,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,338.40 : 1,627,897.20 = 667,434.40 : x
  2. Step 2: Convert to fraction form
    1,087,338.40/1,627,897.20 = 667,434.40/x
  3. Step 3: Cross multiply
    1,087,338.40x = 1,627,897.20 × 667,434.40
  4. Step 4: Simplify right side
    1,087,338.40x = 1,086,514,590,943.68
  5. Step 5: Solve for x
    x = 1,086,514,590,943.68/1,087,338.40
  6. Step 6: Final answer
    x = 999,242.36

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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.