Home / 1,078,885.76-1,489,422.24-788,171.12

Finding the Fourth Proportional to 1,078,885.76, 1,489,422.24 and 788,171.12

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Solution

The fourth proportional to 1,078,885.76, 1,489,422.24 and 788,171.12 is: 1,088,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,885.76 : 1,489,422.24 = 788,171.12 : x
  2. Step 2: Convert to fraction form
    1,078,885.76/1,489,422.24 = 788,171.12/x
  3. Step 3: Cross multiply
    1,078,885.76x = 1,489,422.24 × 788,171.12
  4. Step 4: Simplify right side
    1,078,885.76x = 1,173,919,595,053.71
  5. Step 5: Solve for x
    x = 1,173,919,595,053.71/1,078,885.76
  6. Step 6: Final answer
    x = 1,088,085.17

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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.