Home / 677,633.76-1,016,079.36-312,499.02

Finding the Fourth Proportional to 677,633.76, 1,016,079.36 and 312,499.02

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Solution

The fourth proportional to 677,633.76, 1,016,079.36 and 312,499.02 is: 468,577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,633.76 : 1,016,079.36 = 312,499.02 : x
  2. Step 2: Convert to fraction form
    677,633.76/1,016,079.36 = 312,499.02/x
  3. Step 3: Cross multiply
    677,633.76x = 1,016,079.36 × 312,499.02
  4. Step 4: Simplify right side
    677,633.76x = 317,523,804,242.23
  5. Step 5: Solve for x
    x = 317,523,804,242.23/677,633.76
  6. Step 6: Final answer
    x = 468,577.31

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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.