Home / 1,377,989.52-1,901,710.98-766,147.20

Finding the Fourth Proportional to 1,377,989.52, 1,901,710.98 and 766,147.20

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Solution

The fourth proportional to 1,377,989.52, 1,901,710.98 and 766,147.20 is: 1,057,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,989.52 : 1,901,710.98 = 766,147.20 : x
  2. Step 2: Convert to fraction form
    1,377,989.52/1,901,710.98 = 766,147.20/x
  3. Step 3: Cross multiply
    1,377,989.52x = 1,901,710.98 × 766,147.20
  4. Step 4: Simplify right side
    1,377,989.52x = 1,456,990,542,536.26
  5. Step 5: Solve for x
    x = 1,456,990,542,536.26/1,377,989.52
  6. Step 6: Final answer
    x = 1,057,330.64

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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.