Home / 782,874.89-1,080,366.59-438,713.52

Finding the Fourth Proportional to 782,874.89, 1,080,366.59 and 438,713.52

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Solution

The fourth proportional to 782,874.89, 1,080,366.59 and 438,713.52 is: 605,424.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,874.89 : 1,080,366.59 = 438,713.52 : x
  2. Step 2: Convert to fraction form
    782,874.89/1,080,366.59 = 438,713.52/x
  3. Step 3: Cross multiply
    782,874.89x = 1,080,366.59 × 438,713.52
  4. Step 4: Simplify right side
    782,874.89x = 473,971,426,634.71
  5. Step 5: Solve for x
    x = 473,971,426,634.71/782,874.89
  6. Step 6: Final answer
    x = 605,424.23

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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.