Home / 1,259,686.97-1,890,622.33-661,071.05

Finding the Fourth Proportional to 1,259,686.97, 1,890,622.33 and 661,071.05

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Solution

The fourth proportional to 1,259,686.97, 1,890,622.33 and 661,071.05 is: 992,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,686.97 : 1,890,622.33 = 661,071.05 : x
  2. Step 2: Convert to fraction form
    1,259,686.97/1,890,622.33 = 661,071.05/x
  3. Step 3: Cross multiply
    1,259,686.97x = 1,890,622.33 × 661,071.05
  4. Step 4: Simplify right side
    1,259,686.97x = 1,249,835,688,846.55
  5. Step 5: Solve for x
    x = 1,249,835,688,846.55/1,259,686.97
  6. Step 6: Final answer
    x = 992,179.58

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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.