Home / 991,205.92-1,486,870.44-281,289.52

Finding the Fourth Proportional to 991,205.92, 1,486,870.44 and 281,289.52

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Solution

The fourth proportional to 991,205.92, 1,486,870.44 and 281,289.52 is: 421,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,205.92 : 1,486,870.44 = 281,289.52 : x
  2. Step 2: Convert to fraction form
    991,205.92/1,486,870.44 = 281,289.52/x
  3. Step 3: Cross multiply
    991,205.92x = 1,486,870.44 × 281,289.52
  4. Step 4: Simplify right side
    991,205.92x = 418,241,072,369.79
  5. Step 5: Solve for x
    x = 418,241,072,369.79/991,205.92
  6. Step 6: Final answer
    x = 421,951.75

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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.