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Finding the Fourth Proportional to 616,078.13, 850,187.81 and 347,806.13

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Solution

The fourth proportional to 616,078.13, 850,187.81 and 347,806.13 is: 479,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,078.13 : 850,187.81 = 347,806.13 : x
  2. Step 2: Convert to fraction form
    616,078.13/850,187.81 = 347,806.13/x
  3. Step 3: Cross multiply
    616,078.13x = 850,187.81 × 347,806.13
  4. Step 4: Simplify right side
    616,078.13x = 295,700,528,587.85
  5. Step 5: Solve for x
    x = 295,700,528,587.85/616,078.13
  6. Step 6: Final answer
    x = 479,972.45

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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.