Home / 813,452.78-1,122,632.08-450,990.34

Finding the Fourth Proportional to 813,452.78, 1,122,632.08 and 450,990.34

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Solution

The fourth proportional to 813,452.78, 1,122,632.08 and 450,990.34 is: 622,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,452.78 : 1,122,632.08 = 450,990.34 : x
  2. Step 2: Convert to fraction form
    813,452.78/1,122,632.08 = 450,990.34/x
  3. Step 3: Cross multiply
    813,452.78x = 1,122,632.08 × 450,990.34
  4. Step 4: Simplify right side
    813,452.78x = 506,296,223,454.11
  5. Step 5: Solve for x
    x = 506,296,223,454.11/813,452.78
  6. Step 6: Final answer
    x = 622,403.95

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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.