Home / 739,706.70-1,109,560.05-266,330.55

Finding the Fourth Proportional to 739,706.70, 1,109,560.05 and 266,330.55

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Solution

The fourth proportional to 739,706.70, 1,109,560.05 and 266,330.55 is: 399,495.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,706.70 : 1,109,560.05 = 266,330.55 : x
  2. Step 2: Convert to fraction form
    739,706.70/1,109,560.05 = 266,330.55/x
  3. Step 3: Cross multiply
    739,706.70x = 1,109,560.05 × 266,330.55
  4. Step 4: Simplify right side
    739,706.70x = 295,509,738,374.53
  5. Step 5: Solve for x
    x = 295,509,738,374.53/739,706.70
  6. Step 6: Final answer
    x = 399,495.83

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Double scale
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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.