Home / 779,943.30-1,170,085.05-443,145.30

Finding the Fourth Proportional to 779,943.30, 1,170,085.05 and 443,145.30

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Solution

The fourth proportional to 779,943.30, 1,170,085.05 and 443,145.30 is: 664,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,943.30 : 1,170,085.05 = 443,145.30 : x
  2. Step 2: Convert to fraction form
    779,943.30/1,170,085.05 = 443,145.30/x
  3. Step 3: Cross multiply
    779,943.30x = 1,170,085.05 × 443,145.30
  4. Step 4: Simplify right side
    779,943.30x = 518,517,690,507.77
  5. Step 5: Solve for x
    x = 518,517,690,507.77/779,943.30
  6. Step 6: Final answer
    x = 664,814.60

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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.