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Finding the Fourth Proportional to 462,382.90, 693,113.55 and 212,629.30

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Solution

The fourth proportional to 462,382.90, 693,113.55 and 212,629.30 is: 318,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,382.90 : 693,113.55 = 212,629.30 : x
  2. Step 2: Convert to fraction form
    462,382.90/693,113.55 = 212,629.30/x
  3. Step 3: Cross multiply
    462,382.90x = 693,113.55 × 212,629.30
  4. Step 4: Simplify right side
    462,382.90x = 147,376,248,957.02
  5. Step 5: Solve for x
    x = 147,376,248,957.02/462,382.90
  6. Step 6: Final answer
    x = 318,732.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.