Home / 891,620.36-1,230,435.96-509,655.34

Finding the Fourth Proportional to 891,620.36, 1,230,435.96 and 509,655.34

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Solution

The fourth proportional to 891,620.36, 1,230,435.96 and 509,655.34 is: 703,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,620.36 : 1,230,435.96 = 509,655.34 : x
  2. Step 2: Convert to fraction form
    891,620.36/1,230,435.96 = 509,655.34/x
  3. Step 3: Cross multiply
    891,620.36x = 1,230,435.96 × 509,655.34
  4. Step 4: Simplify right side
    891,620.36x = 627,098,257,542.03
  5. Step 5: Solve for x
    x = 627,098,257,542.03/891,620.36
  6. Step 6: Final answer
    x = 703,324.29

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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.