Home / 1,309,515.52-1,807,150.08-772,971.52

Finding the Fourth Proportional to 1,309,515.52, 1,807,150.08 and 772,971.52

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Solution

The fourth proportional to 1,309,515.52, 1,807,150.08 and 772,971.52 is: 1,066,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,515.52 : 1,807,150.08 = 772,971.52 : x
  2. Step 2: Convert to fraction form
    1,309,515.52/1,807,150.08 = 772,971.52/x
  3. Step 3: Cross multiply
    1,309,515.52x = 1,807,150.08 × 772,971.52
  4. Step 4: Simplify right side
    1,309,515.52x = 1,396,875,544,205.72
  5. Step 5: Solve for x
    x = 1,396,875,544,205.72/1,309,515.52
  6. Step 6: Final answer
    x = 1,066,711.71

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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.