Home / 1,372,149.79-2,058,229.20-347,479.51

Finding the Fourth Proportional to 1,372,149.79, 2,058,229.20 and 347,479.51

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Solution

The fourth proportional to 1,372,149.79, 2,058,229.20 and 347,479.51 is: 521,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,149.79 : 2,058,229.20 = 347,479.51 : x
  2. Step 2: Convert to fraction form
    1,372,149.79/2,058,229.20 = 347,479.51/x
  3. Step 3: Cross multiply
    1,372,149.79x = 2,058,229.20 × 347,479.51
  4. Step 4: Simplify right side
    1,372,149.79x = 715,192,473,883.69
  5. Step 5: Solve for x
    x = 715,192,473,883.69/1,372,149.79
  6. Step 6: Final answer
    x = 521,220.41

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Double scale
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1.5x scale

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.