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Finding the Fourth Proportional to 559,590.74, 772,235.25 and 304,941.86

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Solution

The fourth proportional to 559,590.74, 772,235.25 and 304,941.86 is: 420,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,590.74 : 772,235.25 = 304,941.86 : x
  2. Step 2: Convert to fraction form
    559,590.74/772,235.25 = 304,941.86/x
  3. Step 3: Cross multiply
    559,590.74x = 772,235.25 × 304,941.86
  4. Step 4: Simplify right side
    559,590.74x = 235,486,853,492.57
  5. Step 5: Solve for x
    x = 235,486,853,492.57/559,590.74
  6. Step 6: Final answer
    x = 420,819.78

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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.