Home / 787,993.38-1,182,106.71-289,318.50

Finding the Fourth Proportional to 787,993.38, 1,182,106.71 and 289,318.50

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Solution

The fourth proportional to 787,993.38, 1,182,106.71 and 289,318.50 is: 434,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,993.38 : 1,182,106.71 = 289,318.50 : x
  2. Step 2: Convert to fraction form
    787,993.38/1,182,106.71 = 289,318.50/x
  3. Step 3: Cross multiply
    787,993.38x = 1,182,106.71 × 289,318.50
  4. Step 4: Simplify right side
    787,993.38x = 342,005,340,177.14
  5. Step 5: Solve for x
    x = 342,005,340,177.14/787,993.38
  6. Step 6: Final answer
    x = 434,020.58

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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.