Home / 991,251.48-1,486,933.80-281,223.72

Finding the Fourth Proportional to 991,251.48, 1,486,933.80 and 281,223.72

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Solution

The fourth proportional to 991,251.48, 1,486,933.80 and 281,223.72 is: 421,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,251.48 : 1,486,933.80 = 281,223.72 : x
  2. Step 2: Convert to fraction form
    991,251.48/1,486,933.80 = 281,223.72/x
  3. Step 3: Cross multiply
    991,251.48x = 1,486,933.80 × 281,223.72
  4. Step 4: Simplify right side
    991,251.48x = 418,161,054,629.74
  5. Step 5: Solve for x
    x = 418,161,054,629.74/991,251.48
  6. Step 6: Final answer
    x = 421,851.63

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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.