Home / 1,681,003.82-2,319,739.34-917,057.18

Finding the Fourth Proportional to 1,681,003.82, 2,319,739.34 and 917,057.18

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Solution

The fourth proportional to 1,681,003.82, 2,319,739.34 and 917,057.18 is: 1,265,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,003.82 : 2,319,739.34 = 917,057.18 : x
  2. Step 2: Convert to fraction form
    1,681,003.82/2,319,739.34 = 917,057.18/x
  3. Step 3: Cross multiply
    1,681,003.82x = 2,319,739.34 × 917,057.18
  4. Step 4: Simplify right side
    1,681,003.82x = 2,127,333,617,475.46
  5. Step 5: Solve for x
    x = 2,127,333,617,475.46/1,681,003.82
  6. Step 6: Final answer
    x = 1,265,513.85

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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.