Home / 991,205.67-1,486,870.07-281,289.27

Finding the Fourth Proportional to 991,205.67, 1,486,870.07 and 281,289.27

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Solution

The fourth proportional to 991,205.67, 1,486,870.07 and 281,289.27 is: 421,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,205.67 : 1,486,870.07 = 281,289.27 : x
  2. Step 2: Convert to fraction form
    991,205.67/1,486,870.07 = 281,289.27/x
  3. Step 3: Cross multiply
    991,205.67x = 1,486,870.07 × 281,289.27
  4. Step 4: Simplify right side
    991,205.67x = 418,240,595,168.70
  5. Step 5: Solve for x
    x = 418,240,595,168.70/991,205.67
  6. Step 6: Final answer
    x = 421,951.37

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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.