Home / 1,209,883.01-1,669,991.13-790,839.68

Finding the Fourth Proportional to 1,209,883.01, 1,669,991.13 and 790,839.68

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Solution

The fourth proportional to 1,209,883.01, 1,669,991.13 and 790,839.68 is: 1,091,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,883.01 : 1,669,991.13 = 790,839.68 : x
  2. Step 2: Convert to fraction form
    1,209,883.01/1,669,991.13 = 790,839.68/x
  3. Step 3: Cross multiply
    1,209,883.01x = 1,669,991.13 × 790,839.68
  4. Step 4: Simplify right side
    1,209,883.01x = 1,320,695,242,502.08
  5. Step 5: Solve for x
    x = 1,320,695,242,502.08/1,209,883.01
  6. Step 6: Final answer
    x = 1,091,589.22

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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.