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Finding the Fourth Proportional to 573,554.32, 791,488.68 and 318,900.88

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Solution

The fourth proportional to 573,554.32, 791,488.68 and 318,900.88 is: 440,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,554.32 : 791,488.68 = 318,900.88 : x
  2. Step 2: Convert to fraction form
    573,554.32/791,488.68 = 318,900.88/x
  3. Step 3: Cross multiply
    573,554.32x = 791,488.68 × 318,900.88
  4. Step 4: Simplify right side
    573,554.32x = 252,406,436,562.04
  5. Step 5: Solve for x
    x = 252,406,436,562.04/573,554.32
  6. Step 6: Final answer
    x = 440,074.16

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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.