Home / 1,319,297.72-1,820,634.37-715,685.72

Finding the Fourth Proportional to 1,319,297.72, 1,820,634.37 and 715,685.72

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Solution

The fourth proportional to 1,319,297.72, 1,820,634.37 and 715,685.72 is: 987,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,297.72 : 1,820,634.37 = 715,685.72 : x
  2. Step 2: Convert to fraction form
    1,319,297.72/1,820,634.37 = 715,685.72/x
  3. Step 3: Cross multiply
    1,319,297.72x = 1,820,634.37 × 715,685.72
  4. Step 4: Simplify right side
    1,319,297.72x = 1,303,002,022,712.57
  5. Step 5: Solve for x
    x = 1,303,002,022,712.57/1,319,297.72
  6. Step 6: Final answer
    x = 987,648.20

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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.