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Finding the Fourth Proportional to 676,566, 933,428.88 and 385,968.60

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Solution

The fourth proportional to 676,566, 933,428.88 and 385,968.60 is: 532,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,566 : 933,428.88 = 385,968.60 : x
  2. Step 2: Convert to fraction form
    676,566/933,428.88 = 385,968.60/x
  3. Step 3: Cross multiply
    676,566x = 933,428.88 × 385,968.60
  4. Step 4: Simplify right side
    676,566x = 360,274,238,013.17
  5. Step 5: Solve for x
    x = 360,274,238,013.17/676,566
  6. Step 6: Final answer
    x = 532,504.20

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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.