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Finding the Fourth Proportional to 768,167.60, 1,151,279.40 and 294,220.40

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Solution

The fourth proportional to 768,167.60, 1,151,279.40 and 294,220.40 is: 440,958.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,167.60 : 1,151,279.40 = 294,220.40 : x
  2. Step 2: Convert to fraction form
    768,167.60/1,151,279.40 = 294,220.40/x
  3. Step 3: Cross multiply
    768,167.60x = 1,151,279.40 × 294,220.40
  4. Step 4: Simplify right side
    768,167.60x = 338,729,885,579.76
  5. Step 5: Solve for x
    x = 338,729,885,579.76/768,167.60
  6. Step 6: Final answer
    x = 440,958.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.