Home / 1,028,279.60-1,541,771.40-429,657.20

Finding the Fourth Proportional to 1,028,279.60, 1,541,771.40 and 429,657.20

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Solution

The fourth proportional to 1,028,279.60, 1,541,771.40 and 429,657.20 is: 644,215.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,279.60 : 1,541,771.40 = 429,657.20 : x
  2. Step 2: Convert to fraction form
    1,028,279.60/1,541,771.40 = 429,657.20/x
  3. Step 3: Cross multiply
    1,028,279.60x = 1,541,771.40 × 429,657.20
  4. Step 4: Simplify right side
    1,028,279.60x = 662,433,182,764.08
  5. Step 5: Solve for x
    x = 662,433,182,764.08/1,028,279.60
  6. Step 6: Final answer
    x = 644,215.04

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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.