Home / 1,617,089.91-2,231,594.60-891,957.21

Finding the Fourth Proportional to 1,617,089.91, 2,231,594.60 and 891,957.21

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Solution

The fourth proportional to 1,617,089.91, 2,231,594.60 and 891,957.21 is: 1,230,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,089.91 : 2,231,594.60 = 891,957.21 : x
  2. Step 2: Convert to fraction form
    1,617,089.91/2,231,594.60 = 891,957.21/x
  3. Step 3: Cross multiply
    1,617,089.91x = 2,231,594.60 × 891,957.21
  4. Step 4: Simplify right side
    1,617,089.91x = 1,990,486,888,807.28
  5. Step 5: Solve for x
    x = 1,990,486,888,807.28/1,617,089.91
  6. Step 6: Final answer
    x = 1,230,906.75

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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.