Home / 1,097,572.80-1,514,885.76-667,991.28

Finding the Fourth Proportional to 1,097,572.80, 1,514,885.76 and 667,991.28

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Solution

The fourth proportional to 1,097,572.80, 1,514,885.76 and 667,991.28 is: 921,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,572.80 : 1,514,885.76 = 667,991.28 : x
  2. Step 2: Convert to fraction form
    1,097,572.80/1,514,885.76 = 667,991.28/x
  3. Step 3: Cross multiply
    1,097,572.80x = 1,514,885.76 × 667,991.28
  4. Step 4: Simplify right side
    1,097,572.80x = 1,011,930,477,876.17
  5. Step 5: Solve for x
    x = 1,011,930,477,876.17/1,097,572.80
  6. Step 6: Final answer
    x = 921,971.17

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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.