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Finding the Fourth Proportional to 580,324.48, 870,732.78 and 281,028.06

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Solution

The fourth proportional to 580,324.48, 870,732.78 and 281,028.06 is: 421,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,324.48 : 870,732.78 = 281,028.06 : x
  2. Step 2: Convert to fraction form
    580,324.48/870,732.78 = 281,028.06/x
  3. Step 3: Cross multiply
    580,324.48x = 870,732.78 × 281,028.06
  4. Step 4: Simplify right side
    580,324.48x = 244,700,343,941.81
  5. Step 5: Solve for x
    x = 244,700,343,941.81/580,324.48
  6. Step 6: Final answer
    x = 421,661.25

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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.