Home / 1,971,158.68-2,720,780.73-1,155,538.90

Finding the Fourth Proportional to 1,971,158.68, 2,720,780.73 and 1,155,538.90

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Solution

The fourth proportional to 1,971,158.68, 2,720,780.73 and 1,155,538.90 is: 1,594,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,158.68 : 2,720,780.73 = 1,155,538.90 : x
  2. Step 2: Convert to fraction form
    1,971,158.68/2,720,780.73 = 1,155,538.90/x
  3. Step 3: Cross multiply
    1,971,158.68x = 2,720,780.73 × 1,155,538.90
  4. Step 4: Simplify right side
    1,971,158.68x = 3,143,967,966,107.70
  5. Step 5: Solve for x
    x = 3,143,967,966,107.70/1,971,158.68
  6. Step 6: Final answer
    x = 1,594,984.72

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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.