Home / 1,225,590.80-1,691,290.34-681,714.88

Finding the Fourth Proportional to 1,225,590.80, 1,691,290.34 and 681,714.88

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Solution

The fourth proportional to 1,225,590.80, 1,691,290.34 and 681,714.88 is: 940,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,590.80 : 1,691,290.34 = 681,714.88 : x
  2. Step 2: Convert to fraction form
    1,225,590.80/1,691,290.34 = 681,714.88/x
  3. Step 3: Cross multiply
    1,225,590.80x = 1,691,290.34 × 681,714.88
  4. Step 4: Simplify right side
    1,225,590.80x = 1,152,977,791,178.26
  5. Step 5: Solve for x
    x = 1,152,977,791,178.26/1,225,590.80
  6. Step 6: Final answer
    x = 940,752.65

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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.