Home / 644,492.68-966,837.30-328,777.36

Finding the Fourth Proportional to 644,492.68, 966,837.30 and 328,777.36

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Solution

The fourth proportional to 644,492.68, 966,837.30 and 328,777.36 is: 493,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,492.68 : 966,837.30 = 328,777.36 : x
  2. Step 2: Convert to fraction form
    644,492.68/966,837.30 = 328,777.36/x
  3. Step 3: Cross multiply
    644,492.68x = 966,837.30 × 328,777.36
  4. Step 4: Simplify right side
    644,492.68x = 317,874,215,043.53
  5. Step 5: Solve for x
    x = 317,874,215,043.53/644,492.68
  6. Step 6: Final answer
    x = 493,216.18

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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.