Home / 1,073,297.36-1,480,827-643,420.64

Finding the Fourth Proportional to 1,073,297.36, 1,480,827 and 643,420.64

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Solution

The fourth proportional to 1,073,297.36, 1,480,827 and 643,420.64 is: 887,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,297.36 : 1,480,827 = 643,420.64 : x
  2. Step 2: Convert to fraction form
    1,073,297.36/1,480,827 = 643,420.64/x
  3. Step 3: Cross multiply
    1,073,297.36x = 1,480,827 × 643,420.64
  4. Step 4: Simplify right side
    1,073,297.36x = 952,794,656,069.28
  5. Step 5: Solve for x
    x = 952,794,656,069.28/1,073,297.36
  6. Step 6: Final answer
    x = 887,726.64

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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.