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Finding the Fourth Proportional to 567,279.55, 782,708.29 and 322,209.78

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Solution

The fourth proportional to 567,279.55, 782,708.29 and 322,209.78 is: 444,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,279.55 : 782,708.29 = 322,209.78 : x
  2. Step 2: Convert to fraction form
    567,279.55/782,708.29 = 322,209.78/x
  3. Step 3: Cross multiply
    567,279.55x = 782,708.29 × 322,209.78
  4. Step 4: Simplify right side
    567,279.55x = 252,196,265,925.08
  5. Step 5: Solve for x
    x = 252,196,265,925.08/567,279.55
  6. Step 6: Final answer
    x = 444,571.40

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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.