Home / 807,412.17-1,114,229.85-439,887.48

Finding the Fourth Proportional to 807,412.17, 1,114,229.85 and 439,887.48

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Solution

The fourth proportional to 807,412.17, 1,114,229.85 and 439,887.48 is: 607,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,412.17 : 1,114,229.85 = 439,887.48 : x
  2. Step 2: Convert to fraction form
    807,412.17/1,114,229.85 = 439,887.48/x
  3. Step 3: Cross multiply
    807,412.17x = 1,114,229.85 × 439,887.48
  4. Step 4: Simplify right side
    807,412.17x = 490,135,760,857.28
  5. Step 5: Solve for x
    x = 490,135,760,857.28/807,412.17
  6. Step 6: Final answer
    x = 607,045.30

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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.