Home / 677,634.76-1,016,080.86-312,500.02

Finding the Fourth Proportional to 677,634.76, 1,016,080.86 and 312,500.02

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Solution

The fourth proportional to 677,634.76, 1,016,080.86 and 312,500.02 is: 468,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,634.76 : 1,016,080.86 = 312,500.02 : x
  2. Step 2: Convert to fraction form
    677,634.76/1,016,080.86 = 312,500.02/x
  3. Step 3: Cross multiply
    677,634.76x = 1,016,080.86 × 312,500.02
  4. Step 4: Simplify right side
    677,634.76x = 317,525,289,071.62
  5. Step 5: Solve for x
    x = 317,525,289,071.62/677,634.76
  6. Step 6: Final answer
    x = 468,578.81

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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.