Home / 991,487.25-1,487,227.23-281,515.37

Finding the Fourth Proportional to 991,487.25, 1,487,227.23 and 281,515.37

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Solution

The fourth proportional to 991,487.25, 1,487,227.23 and 281,515.37 is: 422,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,487.25 : 1,487,227.23 = 281,515.37 : x
  2. Step 2: Convert to fraction form
    991,487.25/1,487,227.23 = 281,515.37/x
  3. Step 3: Cross multiply
    991,487.25x = 1,487,227.23 × 281,515.37
  4. Step 4: Simplify right side
    991,487.25x = 418,677,316,491.39
  5. Step 5: Solve for x
    x = 418,677,316,491.39/991,487.25
  6. Step 6: Final answer
    x = 422,272.01

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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.