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Finding the Fourth Proportional to 479,307.78, 718,961.67 and 163,767.42

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Solution

The fourth proportional to 479,307.78, 718,961.67 and 163,767.42 is: 245,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,307.78 : 718,961.67 = 163,767.42 : x
  2. Step 2: Convert to fraction form
    479,307.78/718,961.67 = 163,767.42/x
  3. Step 3: Cross multiply
    479,307.78x = 718,961.67 × 163,767.42
  4. Step 4: Simplify right side
    479,307.78x = 117,742,497,774.79
  5. Step 5: Solve for x
    x = 117,742,497,774.79/479,307.78
  6. Step 6: Final answer
    x = 245,651.13

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Similar ratio
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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.