Home / 913,821.36-1,370,878.92-314,635.20

Finding the Fourth Proportional to 913,821.36, 1,370,878.92 and 314,635.20

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Solution

The fourth proportional to 913,821.36, 1,370,878.92 and 314,635.20 is: 472,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,821.36 : 1,370,878.92 = 314,635.20 : x
  2. Step 2: Convert to fraction form
    913,821.36/1,370,878.92 = 314,635.20/x
  3. Step 3: Cross multiply
    913,821.36x = 1,370,878.92 × 314,635.20
  4. Step 4: Simplify right side
    913,821.36x = 431,326,763,169.98
  5. Step 5: Solve for x
    x = 431,326,763,169.98/913,821.36
  6. Step 6: Final answer
    x = 472,003.37

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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.