Home / 780,040.70-1,170,061.05-360,136.70

Finding the Fourth Proportional to 780,040.70, 1,170,061.05 and 360,136.70

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Solution

The fourth proportional to 780,040.70, 1,170,061.05 and 360,136.70 is: 540,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,040.70 : 1,170,061.05 = 360,136.70 : x
  2. Step 2: Convert to fraction form
    780,040.70/1,170,061.05 = 360,136.70/x
  3. Step 3: Cross multiply
    780,040.70x = 1,170,061.05 × 360,136.70
  4. Step 4: Simplify right side
    780,040.70x = 421,381,925,345.54
  5. Step 5: Solve for x
    x = 421,381,925,345.54/780,040.70
  6. Step 6: Final answer
    x = 540,205.05

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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.