Home / 1,207,322.51-1,665,741.72-723,711.20

Finding the Fourth Proportional to 1,207,322.51, 1,665,741.72 and 723,711.20

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Solution

The fourth proportional to 1,207,322.51, 1,665,741.72 and 723,711.20 is: 998,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,322.51 : 1,665,741.72 = 723,711.20 : x
  2. Step 2: Convert to fraction form
    1,207,322.51/1,665,741.72 = 723,711.20/x
  3. Step 3: Cross multiply
    1,207,322.51x = 1,665,741.72 × 723,711.20
  4. Step 4: Simplify right side
    1,207,322.51x = 1,205,515,930,742.56
  5. Step 5: Solve for x
    x = 1,205,515,930,742.56/1,207,322.51
  6. Step 6: Final answer
    x = 998,503.65

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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.