Home / 932,378.67-1,398,429.42-258,389.69

Finding the Fourth Proportional to 932,378.67, 1,398,429.42 and 258,389.69

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Solution

The fourth proportional to 932,378.67, 1,398,429.42 and 258,389.69 is: 387,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,378.67 : 1,398,429.42 = 258,389.69 : x
  2. Step 2: Convert to fraction form
    932,378.67/1,398,429.42 = 258,389.69/x
  3. Step 3: Cross multiply
    932,378.67x = 1,398,429.42 × 258,389.69
  4. Step 4: Simplify right side
    932,378.67x = 361,339,737,328.53
  5. Step 5: Solve for x
    x = 361,339,737,328.53/932,378.67
  6. Step 6: Final answer
    x = 387,546.12

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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.