Home / 1,131,275.26-1,561,066.95-666,055.18

Finding the Fourth Proportional to 1,131,275.26, 1,561,066.95 and 666,055.18

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Solution

The fourth proportional to 1,131,275.26, 1,561,066.95 and 666,055.18 is: 919,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,275.26 : 1,561,066.95 = 666,055.18 : x
  2. Step 2: Convert to fraction form
    1,131,275.26/1,561,066.95 = 666,055.18/x
  3. Step 3: Cross multiply
    1,131,275.26x = 1,561,066.95 × 666,055.18
  4. Step 4: Simplify right side
    1,131,275.26x = 1,039,756,728,374.30
  5. Step 5: Solve for x
    x = 1,039,756,728,374.30/1,131,275.26
  6. Step 6: Final answer
    x = 919,101.45

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Double scale
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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.