Home / 959,378.70-1,440,234.45-485,820.30

Finding the Fourth Proportional to 959,378.70, 1,440,234.45 and 485,820.30

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Solution

The fourth proportional to 959,378.70, 1,440,234.45 and 485,820.30 is: 729,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,378.70 : 1,440,234.45 = 485,820.30 : x
  2. Step 2: Convert to fraction form
    959,378.70/1,440,234.45 = 485,820.30/x
  3. Step 3: Cross multiply
    959,378.70x = 1,440,234.45 × 485,820.30
  4. Step 4: Simplify right side
    959,378.70x = 699,695,132,569.34
  5. Step 5: Solve for x
    x = 699,695,132,569.34/959,378.70
  6. Step 6: Final answer
    x = 729,321.10

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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.