Home / 719,819.90-1,080,384.20-383,142.18

Finding the Fourth Proportional to 719,819.90, 1,080,384.20 and 383,142.18

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Solution

The fourth proportional to 719,819.90, 1,080,384.20 and 383,142.18 is: 575,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,819.90 : 1,080,384.20 = 383,142.18 : x
  2. Step 2: Convert to fraction form
    719,819.90/1,080,384.20 = 383,142.18/x
  3. Step 3: Cross multiply
    719,819.90x = 1,080,384.20 × 383,142.18
  4. Step 4: Simplify right side
    719,819.90x = 413,940,755,709.85
  5. Step 5: Solve for x
    x = 413,940,755,709.85/719,819.90
  6. Step 6: Final answer
    x = 575,061.57

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1.5x scale

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.