Home / 674,640.12-930,977.10-372,827.64

Finding the Fourth Proportional to 674,640.12, 930,977.10 and 372,827.64

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Solution

The fourth proportional to 674,640.12, 930,977.10 and 372,827.64 is: 514,487.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,640.12 : 930,977.10 = 372,827.64 : x
  2. Step 2: Convert to fraction form
    674,640.12/930,977.10 = 372,827.64/x
  3. Step 3: Cross multiply
    674,640.12x = 930,977.10 × 372,827.64
  4. Step 4: Simplify right side
    674,640.12x = 347,093,995,087.04
  5. Step 5: Solve for x
    x = 347,093,995,087.04/674,640.12
  6. Step 6: Final answer
    x = 514,487.63

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1.5x scale

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.