Home / 693,176.20-1,039,764.30-426,070.60

Finding the Fourth Proportional to 693,176.20, 1,039,764.30 and 426,070.60

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Solution

The fourth proportional to 693,176.20, 1,039,764.30 and 426,070.60 is: 639,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,176.20 : 1,039,764.30 = 426,070.60 : x
  2. Step 2: Convert to fraction form
    693,176.20/1,039,764.30 = 426,070.60/x
  3. Step 3: Cross multiply
    693,176.20x = 1,039,764.30 × 426,070.60
  4. Step 4: Simplify right side
    693,176.20x = 443,012,999,159.58
  5. Step 5: Solve for x
    x = 443,012,999,159.58/693,176.20
  6. Step 6: Final answer
    x = 639,105.90

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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.