Home / 718,727.20-1,078,868.40-403,799.20

Finding the Fourth Proportional to 718,727.20, 1,078,868.40 and 403,799.20

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Solution

The fourth proportional to 718,727.20, 1,078,868.40 and 403,799.20 is: 606,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,727.20 : 1,078,868.40 = 403,799.20 : x
  2. Step 2: Convert to fraction form
    718,727.20/1,078,868.40 = 403,799.20/x
  3. Step 3: Cross multiply
    718,727.20x = 1,078,868.40 × 403,799.20
  4. Step 4: Simplify right side
    718,727.20x = 435,646,196,825.28
  5. Step 5: Solve for x
    x = 435,646,196,825.28/718,727.20
  6. Step 6: Final answer
    x = 606,135.68

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1.5x scale

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.