Home / 991,257.48-1,486,942.80-281,229.72

Finding the Fourth Proportional to 991,257.48, 1,486,942.80 and 281,229.72

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Solution

The fourth proportional to 991,257.48, 1,486,942.80 and 281,229.72 is: 421,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,257.48 : 1,486,942.80 = 281,229.72 : x
  2. Step 2: Convert to fraction form
    991,257.48/1,486,942.80 = 281,229.72/x
  3. Step 3: Cross multiply
    991,257.48x = 1,486,942.80 × 281,229.72
  4. Step 4: Simplify right side
    991,257.48x = 418,172,507,300.02
  5. Step 5: Solve for x
    x = 418,172,507,300.02/991,257.48
  6. Step 6: Final answer
    x = 421,860.63

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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.