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Finding the Fourth Proportional to 676,878.88, 1,014,851.76 and 321,593.44

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Solution

The fourth proportional to 676,878.88, 1,014,851.76 and 321,593.44 is: 482,168.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,878.88 : 1,014,851.76 = 321,593.44 : x
  2. Step 2: Convert to fraction form
    676,878.88/1,014,851.76 = 321,593.44/x
  3. Step 3: Cross multiply
    676,878.88x = 1,014,851.76 × 321,593.44
  4. Step 4: Simplify right side
    676,878.88x = 326,369,668,588.45
  5. Step 5: Solve for x
    x = 326,369,668,588.45/676,878.88
  6. Step 6: Final answer
    x = 482,168.49

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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.