Home / 1,207,165.08-1,665,879.84-663,306.78

Finding the Fourth Proportional to 1,207,165.08, 1,665,879.84 and 663,306.78

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Solution

The fourth proportional to 1,207,165.08, 1,665,879.84 and 663,306.78 is: 915,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,165.08 : 1,665,879.84 = 663,306.78 : x
  2. Step 2: Convert to fraction form
    1,207,165.08/1,665,879.84 = 663,306.78/x
  3. Step 3: Cross multiply
    1,207,165.08x = 1,665,879.84 × 663,306.78
  4. Step 4: Simplify right side
    1,207,165.08x = 1,104,989,392,537.32
  5. Step 5: Solve for x
    x = 1,104,989,392,537.32/1,207,165.08
  6. Step 6: Final answer
    x = 915,358.98

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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.