Home / 1,377,871.65-1,901,355.18-765,987.15

Finding the Fourth Proportional to 1,377,871.65, 1,901,355.18 and 765,987.15

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Solution

The fourth proportional to 1,377,871.65, 1,901,355.18 and 765,987.15 is: 1,057,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,871.65 : 1,901,355.18 = 765,987.15 : x
  2. Step 2: Convert to fraction form
    1,377,871.65/1,901,355.18 = 765,987.15/x
  3. Step 3: Cross multiply
    1,377,871.65x = 1,901,355.18 × 765,987.15
  4. Step 4: Simplify right side
    1,377,871.65x = 1,456,413,635,465.94
  5. Step 5: Solve for x
    x = 1,456,413,635,465.94/1,377,871.65
  6. Step 6: Final answer
    x = 1,057,002.40

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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.