Home / 1,155,257.28-1,732,890.78-758,409.12

Finding the Fourth Proportional to 1,155,257.28, 1,732,890.78 and 758,409.12

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Solution

The fourth proportional to 1,155,257.28, 1,732,890.78 and 758,409.12 is: 1,137,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,257.28 : 1,732,890.78 = 758,409.12 : x
  2. Step 2: Convert to fraction form
    1,155,257.28/1,732,890.78 = 758,409.12/x
  3. Step 3: Cross multiply
    1,155,257.28x = 1,732,890.78 × 758,409.12
  4. Step 4: Simplify right side
    1,155,257.28x = 1,314,240,171,515.91
  5. Step 5: Solve for x
    x = 1,314,240,171,515.91/1,155,257.28
  6. Step 6: Final answer
    x = 1,137,616.87

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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.