Home / 913,844.36-1,371,072.72-315,218.72

Finding the Fourth Proportional to 913,844.36, 1,371,072.72 and 315,218.72

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Solution

The fourth proportional to 913,844.36, 1,371,072.72 and 315,218.72 is: 472,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,844.36 : 1,371,072.72 = 315,218.72 : x
  2. Step 2: Convert to fraction form
    913,844.36/1,371,072.72 = 315,218.72/x
  3. Step 3: Cross multiply
    913,844.36x = 1,371,072.72 × 315,218.72
  4. Step 4: Simplify right side
    913,844.36x = 432,187,787,825.32
  5. Step 5: Solve for x
    x = 432,187,787,825.32/913,844.36
  6. Step 6: Final answer
    x = 472,933.69

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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.