Home / 863,764.20-1,295,063.10-442,693.80

Finding the Fourth Proportional to 863,764.20, 1,295,063.10 and 442,693.80

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Solution

The fourth proportional to 863,764.20, 1,295,063.10 and 442,693.80 is: 663,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,764.20 : 1,295,063.10 = 442,693.80 : x
  2. Step 2: Convert to fraction form
    863,764.20/1,295,063.10 = 442,693.80/x
  3. Step 3: Cross multiply
    863,764.20x = 1,295,063.10 × 442,693.80
  4. Step 4: Simplify right side
    863,764.20x = 573,316,404,978.78
  5. Step 5: Solve for x
    x = 573,316,404,978.78/863,764.20
  6. Step 6: Final answer
    x = 663,741.80

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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.