Home / 920,923.10-1,381,532.26-388,522.56

Finding the Fourth Proportional to 920,923.10, 1,381,532.26 and 388,522.56

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Solution

The fourth proportional to 920,923.10, 1,381,532.26 and 388,522.56 is: 582,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,923.10 : 1,381,532.26 = 388,522.56 : x
  2. Step 2: Convert to fraction form
    920,923.10/1,381,532.26 = 388,522.56/x
  3. Step 3: Cross multiply
    920,923.10x = 1,381,532.26 × 388,522.56
  4. Step 4: Simplify right side
    920,923.10x = 536,756,450,377.79
  5. Step 5: Solve for x
    x = 536,756,450,377.79/920,923.10
  6. Step 6: Final answer
    x = 582,846.11

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Double scale
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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.