Home / 1,078,739.05-1,489,219.59-788,024.22

Finding the Fourth Proportional to 1,078,739.05, 1,489,219.59 and 788,024.22

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Solution

The fourth proportional to 1,078,739.05, 1,489,219.59 and 788,024.22 is: 1,087,882.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,739.05 : 1,489,219.59 = 788,024.22 : x
  2. Step 2: Convert to fraction form
    1,078,739.05/1,489,219.59 = 788,024.22/x
  3. Step 3: Cross multiply
    1,078,739.05x = 1,489,219.59 × 788,024.22
  4. Step 4: Simplify right side
    1,078,739.05x = 1,173,541,105,818.47
  5. Step 5: Solve for x
    x = 1,173,541,105,818.47/1,078,739.05
  6. Step 6: Final answer
    x = 1,087,882.29

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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.