Home / 1,320,786-1,822,684.68-717,174

Finding the Fourth Proportional to 1,320,786, 1,822,684.68 and 717,174

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Solution

The fourth proportional to 1,320,786, 1,822,684.68 and 717,174 is: 989,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,786 : 1,822,684.68 = 717,174 : x
  2. Step 2: Convert to fraction form
    1,320,786/1,822,684.68 = 717,174/x
  3. Step 3: Cross multiply
    1,320,786x = 1,822,684.68 × 717,174
  4. Step 4: Simplify right side
    1,320,786x = 1,307,182,062,694.32
  5. Step 5: Solve for x
    x = 1,307,182,062,694.32/1,320,786
  6. Step 6: Final answer
    x = 989,700.12

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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.