Home / 991,488.25-1,487,228.73-281,516.37

Finding the Fourth Proportional to 991,488.25, 1,487,228.73 and 281,516.37

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Solution

The fourth proportional to 991,488.25, 1,487,228.73 and 281,516.37 is: 422,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,488.25 : 1,487,228.73 = 281,516.37 : x
  2. Step 2: Convert to fraction form
    991,488.25/1,487,228.73 = 281,516.37/x
  3. Step 3: Cross multiply
    991,488.25x = 1,487,228.73 × 281,516.37
  4. Step 4: Simplify right side
    991,488.25x = 418,679,233,429.31
  5. Step 5: Solve for x
    x = 418,679,233,429.31/991,488.25
  6. Step 6: Final answer
    x = 422,273.52

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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.