Home / 810,888.54-1,119,049.55-448,335.81

Finding the Fourth Proportional to 810,888.54, 1,119,049.55 and 448,335.81

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Solution

The fourth proportional to 810,888.54, 1,119,049.55 and 448,335.81 is: 618,716.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,888.54 : 1,119,049.55 = 448,335.81 : x
  2. Step 2: Convert to fraction form
    810,888.54/1,119,049.55 = 448,335.81/x
  3. Step 3: Cross multiply
    810,888.54x = 1,119,049.55 × 448,335.81
  4. Step 4: Simplify right side
    810,888.54x = 501,709,987,129.91
  5. Step 5: Solve for x
    x = 501,709,987,129.91/810,888.54
  6. Step 6: Final answer
    x = 618,716.33

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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.