Home / 787,890.19-1,182,204.33-388,313.14

Finding the Fourth Proportional to 787,890.19, 1,182,204.33 and 388,313.14

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Solution

The fourth proportional to 787,890.19, 1,182,204.33 and 388,313.14 is: 582,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,890.19 : 1,182,204.33 = 388,313.14 : x
  2. Step 2: Convert to fraction form
    787,890.19/1,182,204.33 = 388,313.14/x
  3. Step 3: Cross multiply
    787,890.19x = 1,182,204.33 × 388,313.14
  4. Step 4: Simplify right side
    787,890.19x = 459,065,475,503.90
  5. Step 5: Solve for x
    x = 459,065,475,503.90/787,890.19
  6. Step 6: Final answer
    x = 582,651.59

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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.