Home / 680,968.22-939,727.32-375,038.78

Finding the Fourth Proportional to 680,968.22, 939,727.32 and 375,038.78

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Solution

The fourth proportional to 680,968.22, 939,727.32 and 375,038.78 is: 517,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,968.22 : 939,727.32 = 375,038.78 : x
  2. Step 2: Convert to fraction form
    680,968.22/939,727.32 = 375,038.78/x
  3. Step 3: Cross multiply
    680,968.22x = 939,727.32 × 375,038.78
  4. Step 4: Simplify right side
    680,968.22x = 352,434,187,625.47
  5. Step 5: Solve for x
    x = 352,434,187,625.47/680,968.22
  6. Step 6: Final answer
    x = 517,548.66

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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.