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Finding the Fourth Proportional to 559,590.78, 772,234.10 and 304,941.36

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Solution

The fourth proportional to 559,590.78, 772,234.10 and 304,941.36 is: 420,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,590.78 : 772,234.10 = 304,941.36 : x
  2. Step 2: Convert to fraction form
    559,590.78/772,234.10 = 304,941.36/x
  3. Step 3: Cross multiply
    559,590.78x = 772,234.10 × 304,941.36
  4. Step 4: Simplify right side
    559,590.78x = 235,486,116,692.38
  5. Step 5: Solve for x
    x = 235,486,116,692.38/559,590.78
  6. Step 6: Final answer
    x = 420,818.44

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Double scale
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Similar ratio
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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.