Home / 818,740.20-1,227,672.90-286,278.60

Finding the Fourth Proportional to 818,740.20, 1,227,672.90 and 286,278.60

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Solution

The fourth proportional to 818,740.20, 1,227,672.90 and 286,278.60 is: 429,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,740.20 : 1,227,672.90 = 286,278.60 : x
  2. Step 2: Convert to fraction form
    818,740.20/1,227,672.90 = 286,278.60/x
  3. Step 3: Cross multiply
    818,740.20x = 1,227,672.90 × 286,278.60
  4. Step 4: Simplify right side
    818,740.20x = 351,456,479,069.94
  5. Step 5: Solve for x
    x = 351,456,479,069.94/818,740.20
  6. Step 6: Final answer
    x = 429,264.96

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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.