Home / 782,752.36-1,080,391.86-443,420.68

Finding the Fourth Proportional to 782,752.36, 1,080,391.86 and 443,420.68

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Solution

The fourth proportional to 782,752.36, 1,080,391.86 and 443,420.68 is: 612,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,752.36 : 1,080,391.86 = 443,420.68 : x
  2. Step 2: Convert to fraction form
    782,752.36/1,080,391.86 = 443,420.68/x
  3. Step 3: Cross multiply
    782,752.36x = 1,080,391.86 × 443,420.68
  4. Step 4: Simplify right side
    782,752.36x = 479,068,093,227.67
  5. Step 5: Solve for x
    x = 479,068,093,227.67/782,752.36
  6. Step 6: Final answer
    x = 612,030.21

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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.