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Finding the Fourth Proportional to 573,110.20, 790,876.30 and 318,454.84

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Solution

The fourth proportional to 573,110.20, 790,876.30 and 318,454.84 is: 439,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,110.20 : 790,876.30 = 318,454.84 : x
  2. Step 2: Convert to fraction form
    573,110.20/790,876.30 = 318,454.84/x
  3. Step 3: Cross multiply
    573,110.20x = 790,876.30 × 318,454.84
  4. Step 4: Simplify right side
    573,110.20x = 251,858,385,576.29
  5. Step 5: Solve for x
    x = 251,858,385,576.29/573,110.20
  6. Step 6: Final answer
    x = 439,458.91

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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.