Home / 690,206.76-1,035,154.62-269,265.96

Finding the Fourth Proportional to 690,206.76, 1,035,154.62 and 269,265.96

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Solution

The fourth proportional to 690,206.76, 1,035,154.62 and 269,265.96 is: 403,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,206.76 : 1,035,154.62 = 269,265.96 : x
  2. Step 2: Convert to fraction form
    690,206.76/1,035,154.62 = 269,265.96/x
  3. Step 3: Cross multiply
    690,206.76x = 1,035,154.62 × 269,265.96
  4. Step 4: Simplify right side
    690,206.76x = 278,731,902,502.74
  5. Step 5: Solve for x
    x = 278,731,902,502.74/690,206.76
  6. Step 6: Final answer
    x = 403,838.27

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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.