Home / 1,131,350.76-1,561,290.75-615,134.16

Finding the Fourth Proportional to 1,131,350.76, 1,561,290.75 and 615,134.16

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Solution

The fourth proportional to 1,131,350.76, 1,561,290.75 and 615,134.16 is: 848,899.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,350.76 : 1,561,290.75 = 615,134.16 : x
  2. Step 2: Convert to fraction form
    1,131,350.76/1,561,290.75 = 615,134.16/x
  3. Step 3: Cross multiply
    1,131,350.76x = 1,561,290.75 × 615,134.16
  4. Step 4: Simplify right side
    1,131,350.76x = 960,403,274,017.02
  5. Step 5: Solve for x
    x = 960,403,274,017.02/1,131,350.76
  6. Step 6: Final answer
    x = 848,899.66

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Double scale
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Similar ratio
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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.