Home / 741,219.78-1,022,993.01-469,312.91

Finding the Fourth Proportional to 741,219.78, 1,022,993.01 and 469,312.91

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Solution

The fourth proportional to 741,219.78, 1,022,993.01 and 469,312.91 is: 647,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,219.78 : 1,022,993.01 = 469,312.91 : x
  2. Step 2: Convert to fraction form
    741,219.78/1,022,993.01 = 469,312.91/x
  3. Step 3: Cross multiply
    741,219.78x = 1,022,993.01 × 469,312.91
  4. Step 4: Simplify right side
    741,219.78x = 480,103,821,317.79
  5. Step 5: Solve for x
    x = 480,103,821,317.79/741,219.78
  6. Step 6: Final answer
    x = 647,721.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.