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Finding the Fourth Proportional to 613,470.12, 846,391.86 and 371,675.40

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Solution

The fourth proportional to 613,470.12, 846,391.86 and 371,675.40 is: 512,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,470.12 : 846,391.86 = 371,675.40 : x
  2. Step 2: Convert to fraction form
    613,470.12/846,391.86 = 371,675.40/x
  3. Step 3: Cross multiply
    613,470.12x = 846,391.86 × 371,675.40
  4. Step 4: Simplify right side
    613,470.12x = 314,583,033,122.24
  5. Step 5: Solve for x
    x = 314,583,033,122.24/613,470.12
  6. Step 6: Final answer
    x = 512,792.76

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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.