Home / 1,207,456.38-1,666,255.95-663,591.96

Finding the Fourth Proportional to 1,207,456.38, 1,666,255.95 and 663,591.96

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Solution

The fourth proportional to 1,207,456.38, 1,666,255.95 and 663,591.96 is: 915,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,456.38 : 1,666,255.95 = 663,591.96 : x
  2. Step 2: Convert to fraction form
    1,207,456.38/1,666,255.95 = 663,591.96/x
  3. Step 3: Cross multiply
    1,207,456.38x = 1,666,255.95 × 663,591.96
  4. Step 4: Simplify right side
    1,207,456.38x = 1,105,714,051,722.16
  5. Step 5: Solve for x
    x = 1,105,714,051,722.16/1,207,456.38
  6. Step 6: Final answer
    x = 915,738.30

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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.