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Finding the Fourth Proportional to 573,678.60, 791,599.68 and 318,980.76

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Solution

The fourth proportional to 573,678.60, 791,599.68 and 318,980.76 is: 440,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,678.60 : 791,599.68 = 318,980.76 : x
  2. Step 2: Convert to fraction form
    573,678.60/791,599.68 = 318,980.76/x
  3. Step 3: Cross multiply
    573,678.60x = 791,599.68 × 318,980.76
  4. Step 4: Simplify right side
    573,678.60x = 252,505,067,542.16
  5. Step 5: Solve for x
    x = 252,505,067,542.16/573,678.60
  6. Step 6: Final answer
    x = 440,150.75

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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.