Home / 1,216,322.26-1,678,246.32-726,196.57

Finding the Fourth Proportional to 1,216,322.26, 1,678,246.32 and 726,196.57

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Solution

The fourth proportional to 1,216,322.26, 1,678,246.32 and 726,196.57 is: 1,001,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,322.26 : 1,678,246.32 = 726,196.57 : x
  2. Step 2: Convert to fraction form
    1,216,322.26/1,678,246.32 = 726,196.57/x
  3. Step 3: Cross multiply
    1,216,322.26x = 1,678,246.32 × 726,196.57
  4. Step 4: Simplify right side
    1,216,322.26x = 1,218,736,721,199.12
  5. Step 5: Solve for x
    x = 1,218,736,721,199.12/1,216,322.26
  6. Step 6: Final answer
    x = 1,001,985.05

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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.