Home / 838,990.59-1,157,769.67-490,163.33

Finding the Fourth Proportional to 838,990.59, 1,157,769.67 and 490,163.33

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Solution

The fourth proportional to 838,990.59, 1,157,769.67 and 490,163.33 is: 676,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,990.59 : 1,157,769.67 = 490,163.33 : x
  2. Step 2: Convert to fraction form
    838,990.59/1,157,769.67 = 490,163.33/x
  3. Step 3: Cross multiply
    838,990.59x = 1,157,769.67 × 490,163.33
  4. Step 4: Simplify right side
    838,990.59x = 567,496,232,456.03
  5. Step 5: Solve for x
    x = 567,496,232,456.03/838,990.59
  6. Step 6: Final answer
    x = 676,403.57

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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.