Home / 810,989.82-1,119,117.87-448,385.22

Finding the Fourth Proportional to 810,989.82, 1,119,117.87 and 448,385.22

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Solution

The fourth proportional to 810,989.82, 1,119,117.87 and 448,385.22 is: 618,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,989.82 : 1,119,117.87 = 448,385.22 : x
  2. Step 2: Convert to fraction form
    810,989.82/1,119,117.87 = 448,385.22/x
  3. Step 3: Cross multiply
    810,989.82x = 1,119,117.87 × 448,385.22
  4. Step 4: Simplify right side
    810,989.82x = 501,795,912,345.88
  5. Step 5: Solve for x
    x = 501,795,912,345.88/810,989.82
  6. Step 6: Final answer
    x = 618,745.02

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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.