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Finding the Fourth Proportional to 644,494.59, 966,508.61 and 307,521.63

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Solution

The fourth proportional to 644,494.59, 966,508.61 and 307,521.63 is: 461,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,494.59 : 966,508.61 = 307,521.63 : x
  2. Step 2: Convert to fraction form
    644,494.59/966,508.61 = 307,521.63/x
  3. Step 3: Cross multiply
    644,494.59x = 966,508.61 × 307,521.63
  4. Step 4: Simplify right side
    644,494.59x = 297,222,301,618.63
  5. Step 5: Solve for x
    x = 297,222,301,618.63/644,494.59
  6. Step 6: Final answer
    x = 461,171.14

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1.5x scale

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.