Home / 810,742.20-1,118,807.75-448,181.34

Finding the Fourth Proportional to 810,742.20, 1,118,807.75 and 448,181.34

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Solution

The fourth proportional to 810,742.20, 1,118,807.75 and 448,181.34 is: 618,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,742.20 : 1,118,807.75 = 448,181.34 : x
  2. Step 2: Convert to fraction form
    810,742.20/1,118,807.75 = 448,181.34/x
  3. Step 3: Cross multiply
    810,742.20x = 1,118,807.75 × 448,181.34
  4. Step 4: Simplify right side
    810,742.20x = 501,428,754,356.48
  5. Step 5: Solve for x
    x = 501,428,754,356.48/810,742.20
  6. Step 6: Final answer
    x = 618,481.13

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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.