Home / 677,613.15-1,016,048.43-312,478.38

Finding the Fourth Proportional to 677,613.15, 1,016,048.43 and 312,478.38

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Solution

The fourth proportional to 677,613.15, 1,016,048.43 and 312,478.38 is: 468,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,613.15 : 1,016,048.43 = 312,478.38 : x
  2. Step 2: Convert to fraction form
    677,613.15/1,016,048.43 = 312,478.38/x
  3. Step 3: Cross multiply
    677,613.15x = 1,016,048.43 × 312,478.38
  4. Step 4: Simplify right side
    677,613.15x = 317,493,167,407.94
  5. Step 5: Solve for x
    x = 317,493,167,407.94/677,613.15
  6. Step 6: Final answer
    x = 468,546.35

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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.