Home / 776,867.80-1,165,340.10-403,619.80

Finding the Fourth Proportional to 776,867.80, 1,165,340.10 and 403,619.80

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Solution

The fourth proportional to 776,867.80, 1,165,340.10 and 403,619.80 is: 605,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,867.80 : 1,165,340.10 = 403,619.80 : x
  2. Step 2: Convert to fraction form
    776,867.80/1,165,340.10 = 403,619.80/x
  3. Step 3: Cross multiply
    776,867.80x = 1,165,340.10 × 403,619.80
  4. Step 4: Simplify right side
    776,867.80x = 470,354,338,093.98
  5. Step 5: Solve for x
    x = 470,354,338,093.98/776,867.80
  6. Step 6: Final answer
    x = 605,449.65

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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.