Home / 765,980.74-1,057,109.60-548,209.85

Finding the Fourth Proportional to 765,980.74, 1,057,109.60 and 548,209.85

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Solution

The fourth proportional to 765,980.74, 1,057,109.60 and 548,209.85 is: 756,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,980.74 : 1,057,109.60 = 548,209.85 : x
  2. Step 2: Convert to fraction form
    765,980.74/1,057,109.60 = 548,209.85/x
  3. Step 3: Cross multiply
    765,980.74x = 1,057,109.60 × 548,209.85
  4. Step 4: Simplify right side
    765,980.74x = 579,517,899,262.86
  5. Step 5: Solve for x
    x = 579,517,899,262.86/765,980.74
  6. Step 6: Final answer
    x = 756,569.81

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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.