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Finding the Fourth Proportional to 574,780.05, 862,702.25 and 290,671.74

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Solution

The fourth proportional to 574,780.05, 862,702.25 and 290,671.74 is: 436,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,780.05 : 862,702.25 = 290,671.74 : x
  2. Step 2: Convert to fraction form
    574,780.05/862,702.25 = 290,671.74/x
  3. Step 3: Cross multiply
    574,780.05x = 862,702.25 × 290,671.74
  4. Step 4: Simplify right side
    574,780.05x = 250,763,162,656.06
  5. Step 5: Solve for x
    x = 250,763,162,656.06/574,780.05
  6. Step 6: Final answer
    x = 436,276.73

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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.