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Finding the Fourth Proportional to 573,081.98, 790,062.75 and 457,188.70

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Solution

The fourth proportional to 573,081.98, 790,062.75 and 457,188.70 is: 630,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,081.98 : 790,062.75 = 457,188.70 : x
  2. Step 2: Convert to fraction form
    573,081.98/790,062.75 = 457,188.70/x
  3. Step 3: Cross multiply
    573,081.98x = 790,062.75 × 457,188.70
  4. Step 4: Simplify right side
    573,081.98x = 361,207,761,590.93
  5. Step 5: Solve for x
    x = 361,207,761,590.93/573,081.98
  6. Step 6: Final answer
    x = 630,289.86

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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.