Home / 1,565,694.85-2,160,622.33-921,156.61

Finding the Fourth Proportional to 1,565,694.85, 2,160,622.33 and 921,156.61

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Solution

The fourth proportional to 1,565,694.85, 2,160,622.33 and 921,156.61 is: 1,271,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,694.85 : 2,160,622.33 = 921,156.61 : x
  2. Step 2: Convert to fraction form
    1,565,694.85/2,160,622.33 = 921,156.61/x
  3. Step 3: Cross multiply
    1,565,694.85x = 2,160,622.33 × 921,156.61
  4. Step 4: Simplify right side
    1,565,694.85x = 1,990,271,540,993.10
  5. Step 5: Solve for x
    x = 1,990,271,540,993.10/1,565,694.85
  6. Step 6: Final answer
    x = 1,271,174.61

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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.