Home / 780,033.70-1,170,050.55-479,539.90

Finding the Fourth Proportional to 780,033.70, 1,170,050.55 and 479,539.90

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Solution

The fourth proportional to 780,033.70, 1,170,050.55 and 479,539.90 is: 719,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,033.70 : 1,170,050.55 = 479,539.90 : x
  2. Step 2: Convert to fraction form
    780,033.70/1,170,050.55 = 479,539.90/x
  3. Step 3: Cross multiply
    780,033.70x = 1,170,050.55 × 479,539.90
  4. Step 4: Simplify right side
    780,033.70x = 561,085,923,741.95
  5. Step 5: Solve for x
    x = 561,085,923,741.95/780,033.70
  6. Step 6: Final answer
    x = 719,309.85

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Similar ratio
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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.