Home / 1,557,661-2,149,572.18-842,269

Finding the Fourth Proportional to 1,557,661, 2,149,572.18 and 842,269

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Solution

The fourth proportional to 1,557,661, 2,149,572.18 and 842,269 is: 1,162,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,661 : 2,149,572.18 = 842,269 : x
  2. Step 2: Convert to fraction form
    1,557,661/2,149,572.18 = 842,269/x
  3. Step 3: Cross multiply
    1,557,661x = 2,149,572.18 × 842,269
  4. Step 4: Simplify right side
    1,557,661x = 1,810,518,010,476.42
  5. Step 5: Solve for x
    x = 1,810,518,010,476.42/1,557,661
  6. Step 6: Final answer
    x = 1,162,331.22

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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.