Home / 628,703.96-867,631.03-342,243.14

Finding the Fourth Proportional to 628,703.96, 867,631.03 and 342,243.14

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Solution

The fourth proportional to 628,703.96, 867,631.03 and 342,243.14 is: 472,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,703.96 : 867,631.03 = 342,243.14 : x
  2. Step 2: Convert to fraction form
    628,703.96/867,631.03 = 342,243.14/x
  3. Step 3: Cross multiply
    628,703.96x = 867,631.03 × 342,243.14
  4. Step 4: Simplify right side
    628,703.96x = 296,940,762,874.87
  5. Step 5: Solve for x
    x = 296,940,762,874.87/628,703.96
  6. Step 6: Final answer
    x = 472,306.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.