Home / 765,108.90-1,055,808-425,555.28

Finding the Fourth Proportional to 765,108.90, 1,055,808 and 425,555.28

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Solution

The fourth proportional to 765,108.90, 1,055,808 and 425,555.28 is: 587,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,108.90 : 1,055,808 = 425,555.28 : x
  2. Step 2: Convert to fraction form
    765,108.90/1,055,808 = 425,555.28/x
  3. Step 3: Cross multiply
    765,108.90x = 1,055,808 × 425,555.28
  4. Step 4: Simplify right side
    765,108.90x = 449,304,669,066.24
  5. Step 5: Solve for x
    x = 449,304,669,066.24/765,108.90
  6. Step 6: Final answer
    x = 587,242.77

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1.5x scale

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.