Home / 1,971,825.87-2,721,121.52-1,066,407.87

Finding the Fourth Proportional to 1,971,825.87, 2,721,121.52 and 1,066,407.87

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Solution

The fourth proportional to 1,971,825.87, 2,721,121.52 and 1,066,407.87 is: 1,471,643.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,825.87 : 2,721,121.52 = 1,066,407.87 : x
  2. Step 2: Convert to fraction form
    1,971,825.87/2,721,121.52 = 1,066,407.87/x
  3. Step 3: Cross multiply
    1,971,825.87x = 2,721,121.52 × 1,066,407.87
  4. Step 4: Simplify right side
    1,971,825.87x = 2,901,825,398,822.32
  5. Step 5: Solve for x
    x = 2,901,825,398,822.32/1,971,825.87
  6. Step 6: Final answer
    x = 1,471,643.84

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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.