Home / 1,191,741.12-1,787,628.24-660,300.12

Finding the Fourth Proportional to 1,191,741.12, 1,787,628.24 and 660,300.12

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Solution

The fourth proportional to 1,191,741.12, 1,787,628.24 and 660,300.12 is: 990,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,741.12 : 1,787,628.24 = 660,300.12 : x
  2. Step 2: Convert to fraction form
    1,191,741.12/1,787,628.24 = 660,300.12/x
  3. Step 3: Cross multiply
    1,191,741.12x = 1,787,628.24 × 660,300.12
  4. Step 4: Simplify right side
    1,191,741.12x = 1,180,371,141,387.39
  5. Step 5: Solve for x
    x = 1,180,371,141,387.39/1,191,741.12
  6. Step 6: Final answer
    x = 990,459.36

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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.