Home / 812,559.16-1,121,334.78-449,975.08

Finding the Fourth Proportional to 812,559.16, 1,121,334.78 and 449,975.08

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Solution

The fourth proportional to 812,559.16, 1,121,334.78 and 449,975.08 is: 620,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,559.16 : 1,121,334.78 = 449,975.08 : x
  2. Step 2: Convert to fraction form
    812,559.16/1,121,334.78 = 449,975.08/x
  3. Step 3: Cross multiply
    812,559.16x = 1,121,334.78 × 449,975.08
  4. Step 4: Simplify right side
    812,559.16x = 504,572,707,337.28
  5. Step 5: Solve for x
    x = 504,572,707,337.28/812,559.16
  6. Step 6: Final answer
    x = 620,967.35

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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.