Home / 782,615.73-1,080,036.41-438,466.17

Finding the Fourth Proportional to 782,615.73, 1,080,036.41 and 438,466.17

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Solution

The fourth proportional to 782,615.73, 1,080,036.41 and 438,466.17 is: 605,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,615.73 : 1,080,036.41 = 438,466.17 : x
  2. Step 2: Convert to fraction form
    782,615.73/1,080,036.41 = 438,466.17/x
  3. Step 3: Cross multiply
    782,615.73x = 1,080,036.41 × 438,466.17
  4. Step 4: Simplify right side
    782,615.73x = 473,559,425,960.92
  5. Step 5: Solve for x
    x = 473,559,425,960.92/782,615.73
  6. Step 6: Final answer
    x = 605,098.27

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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.