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Finding the Fourth Proportional to 552,330.86, 762,209.30 and 310,613.36

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Solution

The fourth proportional to 552,330.86, 762,209.30 and 310,613.36 is: 428,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,330.86 : 762,209.30 = 310,613.36 : x
  2. Step 2: Convert to fraction form
    552,330.86/762,209.30 = 310,613.36/x
  3. Step 3: Cross multiply
    552,330.86x = 762,209.30 × 310,613.36
  4. Step 4: Simplify right side
    552,330.86x = 236,752,391,696.25
  5. Step 5: Solve for x
    x = 236,752,391,696.25/552,330.86
  6. Step 6: Final answer
    x = 428,642.34

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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.