Home / 765,980.23-1,057,108.92-548,209.35

Finding the Fourth Proportional to 765,980.23, 1,057,108.92 and 548,209.35

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Solution

The fourth proportional to 765,980.23, 1,057,108.92 and 548,209.35 is: 756,569.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,980.23 : 1,057,108.92 = 548,209.35 : x
  2. Step 2: Convert to fraction form
    765,980.23/1,057,108.92 = 548,209.35/x
  3. Step 3: Cross multiply
    765,980.23x = 1,057,108.92 × 548,209.35
  4. Step 4: Simplify right side
    765,980.23x = 579,516,993,912.40
  5. Step 5: Solve for x
    x = 579,516,993,912.40/765,980.23
  6. Step 6: Final answer
    x = 756,569.13

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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.