Home / 832,138.62-1,248,243.45-326,809.11

Finding the Fourth Proportional to 832,138.62, 1,248,243.45 and 326,809.11

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Solution

The fourth proportional to 832,138.62, 1,248,243.45 and 326,809.11 is: 490,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,138.62 : 1,248,243.45 = 326,809.11 : x
  2. Step 2: Convert to fraction form
    832,138.62/1,248,243.45 = 326,809.11/x
  3. Step 3: Cross multiply
    832,138.62x = 1,248,243.45 × 326,809.11
  4. Step 4: Simplify right side
    832,138.62x = 407,937,330,957.83
  5. Step 5: Solve for x
    x = 407,937,330,957.83/832,138.62
  6. Step 6: Final answer
    x = 490,227.61

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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.