Home / 913,928.37-1,371,023.73-314,728.65

Finding the Fourth Proportional to 913,928.37, 1,371,023.73 and 314,728.65

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Solution

The fourth proportional to 913,928.37, 1,371,023.73 and 314,728.65 is: 472,138.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,928.37 : 1,371,023.73 = 314,728.65 : x
  2. Step 2: Convert to fraction form
    913,928.37/1,371,023.73 = 314,728.65/x
  3. Step 3: Cross multiply
    913,928.37x = 1,371,023.73 × 314,728.65
  4. Step 4: Simplify right side
    913,928.37x = 431,500,447,660.87
  5. Step 5: Solve for x
    x = 431,500,447,660.87/913,928.37
  6. Step 6: Final answer
    x = 472,138.15

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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.