Home / 347,720.10-479,382.57-297,274.74

Finding the Fourth Proportional to 347,720.10, 479,382.57 and 297,274.74

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Solution

The fourth proportional to 347,720.10, 479,382.57 and 297,274.74 is: 409,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,720.10 : 479,382.57 = 297,274.74 : x
  2. Step 2: Convert to fraction form
    347,720.10/479,382.57 = 297,274.74/x
  3. Step 3: Cross multiply
    347,720.10x = 479,382.57 × 297,274.74
  4. Step 4: Simplify right side
    347,720.10x = 142,508,328,857.28
  5. Step 5: Solve for x
    x = 142,508,328,857.28/347,720.10
  6. Step 6: Final answer
    x = 409,836.33

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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.