Home / 644,199.40-966,428.70-223,388.20

Finding the Fourth Proportional to 644,199.40, 966,428.70 and 223,388.20

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Solution

The fourth proportional to 644,199.40, 966,428.70 and 223,388.20 is: 335,127.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,199.40 : 966,428.70 = 223,388.20 : x
  2. Step 2: Convert to fraction form
    644,199.40/966,428.70 = 223,388.20/x
  3. Step 3: Cross multiply
    644,199.40x = 966,428.70 × 223,388.20
  4. Step 4: Simplify right side
    644,199.40x = 215,888,767,721.34
  5. Step 5: Solve for x
    x = 215,888,767,721.34/644,199.40
  6. Step 6: Final answer
    x = 335,127.24

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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.