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Finding the Fourth Proportional to 867,902.76, 1,301,977.38 and 268,911

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Solution

The fourth proportional to 867,902.76, 1,301,977.38 and 268,911 is: 403,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,902.76 : 1,301,977.38 = 268,911 : x
  2. Step 2: Convert to fraction form
    867,902.76/1,301,977.38 = 268,911/x
  3. Step 3: Cross multiply
    867,902.76x = 1,301,977.38 × 268,911
  4. Step 4: Simplify right side
    867,902.76x = 350,116,039,233.18
  5. Step 5: Solve for x
    x = 350,116,039,233.18/867,902.76
  6. Step 6: Final answer
    x = 403,404.68

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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.