Home / 780,014.70-1,170,022.05-479,520.90

Finding the Fourth Proportional to 780,014.70, 1,170,022.05 and 479,520.90

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Solution

The fourth proportional to 780,014.70, 1,170,022.05 and 479,520.90 is: 719,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,014.70 : 1,170,022.05 = 479,520.90 : x
  2. Step 2: Convert to fraction form
    780,014.70/1,170,022.05 = 479,520.90/x
  3. Step 3: Cross multiply
    780,014.70x = 1,170,022.05 × 479,520.90
  4. Step 4: Simplify right side
    780,014.70x = 561,050,026,435.85
  5. Step 5: Solve for x
    x = 561,050,026,435.85/780,014.70
  6. Step 6: Final answer
    x = 719,281.35

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Similar ratio
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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.