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Finding the Fourth Proportional to 440,492.78, 608,172.59 and 338,335.58

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Solution

The fourth proportional to 440,492.78, 608,172.59 and 338,335.58 is: 467,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,492.78 : 608,172.59 = 338,335.58 : x
  2. Step 2: Convert to fraction form
    440,492.78/608,172.59 = 338,335.58/x
  3. Step 3: Cross multiply
    440,492.78x = 608,172.59 × 338,335.58
  4. Step 4: Simplify right side
    440,492.78x = 205,766,421,245.21
  5. Step 5: Solve for x
    x = 205,766,421,245.21/440,492.78
  6. Step 6: Final answer
    x = 467,127.80

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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.