Home / 758,738.10-1,137,779.10-379,512.30

Finding the Fourth Proportional to 758,738.10, 1,137,779.10 and 379,512.30

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Solution

The fourth proportional to 758,738.10, 1,137,779.10 and 379,512.30 is: 569,104.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,738.10 : 1,137,779.10 = 379,512.30 : x
  2. Step 2: Convert to fraction form
    758,738.10/1,137,779.10 = 379,512.30/x
  3. Step 3: Cross multiply
    758,738.10x = 1,137,779.10 × 379,512.30
  4. Step 4: Simplify right side
    758,738.10x = 431,801,163,132.93
  5. Step 5: Solve for x
    x = 431,801,163,132.93/758,738.10
  6. Step 6: Final answer
    x = 569,104.36

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Double scale
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Similar ratio
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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.