Home / 810,695.07-1,118,739.51-448,109.61

Finding the Fourth Proportional to 810,695.07, 1,118,739.51 and 448,109.61

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Solution

The fourth proportional to 810,695.07, 1,118,739.51 and 448,109.61 is: 618,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,695.07 : 1,118,739.51 = 448,109.61 : x
  2. Step 2: Convert to fraction form
    810,695.07/1,118,739.51 = 448,109.61/x
  3. Step 3: Cross multiply
    810,695.07x = 1,118,739.51 × 448,109.61
  4. Step 4: Simplify right side
    810,695.07x = 501,317,925,517.69
  5. Step 5: Solve for x
    x = 501,317,925,517.69/810,695.07
  6. Step 6: Final answer
    x = 618,380.38

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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.