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Finding the Fourth Proportional to 644,230.80, 966,637.80 and 307,141.20

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Solution

The fourth proportional to 644,230.80, 966,637.80 and 307,141.20 is: 460,850.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,230.80 : 966,637.80 = 307,141.20 : x
  2. Step 2: Convert to fraction form
    644,230.80/966,637.80 = 307,141.20/x
  3. Step 3: Cross multiply
    644,230.80x = 966,637.80 × 307,141.20
  4. Step 4: Simplify right side
    644,230.80x = 296,894,293,857.36
  5. Step 5: Solve for x
    x = 296,894,293,857.36/644,230.80
  6. Step 6: Final answer
    x = 460,850.82

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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.