Home / 761,779.53-1,142,311.14-281,675.61

Finding the Fourth Proportional to 761,779.53, 1,142,311.14 and 281,675.61

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Solution

The fourth proportional to 761,779.53, 1,142,311.14 and 281,675.61 is: 422,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,779.53 : 1,142,311.14 = 281,675.61 : x
  2. Step 2: Convert to fraction form
    761,779.53/1,142,311.14 = 281,675.61/x
  3. Step 3: Cross multiply
    761,779.53x = 1,142,311.14 × 281,675.61
  4. Step 4: Simplify right side
    761,779.53x = 321,761,187,169.30
  5. Step 5: Solve for x
    x = 321,761,187,169.30/761,779.53
  6. Step 6: Final answer
    x = 422,380.98

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1.5x scale

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.