Home / 1,211,249.07-1,817,159.13-679,137.39

Finding the Fourth Proportional to 1,211,249.07, 1,817,159.13 and 679,137.39

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Solution

The fourth proportional to 1,211,249.07, 1,817,159.13 and 679,137.39 is: 1,018,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,249.07 : 1,817,159.13 = 679,137.39 : x
  2. Step 2: Convert to fraction form
    1,211,249.07/1,817,159.13 = 679,137.39/x
  3. Step 3: Cross multiply
    1,211,249.07x = 1,817,159.13 × 679,137.39
  4. Step 4: Simplify right side
    1,211,249.07x = 1,234,100,708,762.87
  5. Step 5: Solve for x
    x = 1,234,100,708,762.87/1,211,249.07
  6. Step 6: Final answer
    x = 1,018,866.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.