Home / 782,905.68-1,080,373.68-443,376.36

Finding the Fourth Proportional to 782,905.68, 1,080,373.68 and 443,376.36

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Solution

The fourth proportional to 782,905.68, 1,080,373.68 and 443,376.36 is: 611,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,905.68 : 1,080,373.68 = 443,376.36 : x
  2. Step 2: Convert to fraction form
    782,905.68/1,080,373.68 = 443,376.36/x
  3. Step 3: Cross multiply
    782,905.68x = 1,080,373.68 × 443,376.36
  4. Step 4: Simplify right side
    782,905.68x = 479,012,149,678.21
  5. Step 5: Solve for x
    x = 479,012,149,678.21/782,905.68
  6. Step 6: Final answer
    x = 611,838.90

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1.5x scale

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.