Home / 1,315,727-1,815,763.69-727,109.21

Finding the Fourth Proportional to 1,315,727, 1,815,763.69 and 727,109.21

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Solution

The fourth proportional to 1,315,727, 1,815,763.69 and 727,109.21 is: 1,003,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,727 : 1,815,763.69 = 727,109.21 : x
  2. Step 2: Convert to fraction form
    1,315,727/1,815,763.69 = 727,109.21/x
  3. Step 3: Cross multiply
    1,315,727x = 1,815,763.69 × 727,109.21
  4. Step 4: Simplify right side
    1,315,727x = 1,320,258,502,182.58
  5. Step 5: Solve for x
    x = 1,320,258,502,182.58/1,315,727
  6. Step 6: Final answer
    x = 1,003,444.11

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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.