Home / 680,845.02-939,567.51-379,049.82

Finding the Fourth Proportional to 680,845.02, 939,567.51 and 379,049.82

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Solution

The fourth proportional to 680,845.02, 939,567.51 and 379,049.82 is: 523,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,845.02 : 939,567.51 = 379,049.82 : x
  2. Step 2: Convert to fraction form
    680,845.02/939,567.51 = 379,049.82/x
  3. Step 3: Cross multiply
    680,845.02x = 939,567.51 × 379,049.82
  4. Step 4: Simplify right side
    680,845.02x = 356,142,895,543.35
  5. Step 5: Solve for x
    x = 356,142,895,543.35/680,845.02
  6. Step 6: Final answer
    x = 523,089.52

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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.