Home / 1,329,741.54-1,989,581.67-815,570.82

Finding the Fourth Proportional to 1,329,741.54, 1,989,581.67 and 815,570.82

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Solution

The fourth proportional to 1,329,741.54, 1,989,581.67 and 815,570.82 is: 1,220,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,741.54 : 1,989,581.67 = 815,570.82 : x
  2. Step 2: Convert to fraction form
    1,329,741.54/1,989,581.67 = 815,570.82/x
  3. Step 3: Cross multiply
    1,329,741.54x = 1,989,581.67 × 815,570.82
  4. Step 4: Simplify right side
    1,329,741.54x = 1,622,644,754,058.87
  5. Step 5: Solve for x
    x = 1,622,644,754,058.87/1,329,741.54
  6. Step 6: Final answer
    x = 1,220,270.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.