Home / 771,247.28-1,155,364.32-531,318.80

Finding the Fourth Proportional to 771,247.28, 1,155,364.32 and 531,318.80

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Solution

The fourth proportional to 771,247.28, 1,155,364.32 and 531,318.80 is: 795,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,247.28 : 1,155,364.32 = 531,318.80 : x
  2. Step 2: Convert to fraction form
    771,247.28/1,155,364.32 = 531,318.80/x
  3. Step 3: Cross multiply
    771,247.28x = 1,155,364.32 × 531,318.80
  4. Step 4: Simplify right side
    771,247.28x = 613,866,784,065.22
  5. Step 5: Solve for x
    x = 613,866,784,065.22/771,247.28
  6. Step 6: Final answer
    x = 795,940.29

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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.