Home / 1,071,805.44-1,478,788.56-690,053.28

Finding the Fourth Proportional to 1,071,805.44, 1,478,788.56 and 690,053.28

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Solution

The fourth proportional to 1,071,805.44, 1,478,788.56 and 690,053.28 is: 952,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,805.44 : 1,478,788.56 = 690,053.28 : x
  2. Step 2: Convert to fraction form
    1,071,805.44/1,478,788.56 = 690,053.28/x
  3. Step 3: Cross multiply
    1,071,805.44x = 1,478,788.56 × 690,053.28
  4. Step 4: Simplify right side
    1,071,805.44x = 1,020,442,896,254.48
  5. Step 5: Solve for x
    x = 1,020,442,896,254.48/1,071,805.44
  6. Step 6: Final answer
    x = 952,078.48

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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.