Home / 687,079.80-1,030,328.10-332,202.60

Finding the Fourth Proportional to 687,079.80, 1,030,328.10 and 332,202.60

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Solution

The fourth proportional to 687,079.80, 1,030,328.10 and 332,202.60 is: 498,162.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,079.80 : 1,030,328.10 = 332,202.60 : x
  2. Step 2: Convert to fraction form
    687,079.80/1,030,328.10 = 332,202.60/x
  3. Step 3: Cross multiply
    687,079.80x = 1,030,328.10 × 332,202.60
  4. Step 4: Simplify right side
    687,079.80x = 342,277,673,673.06
  5. Step 5: Solve for x
    x = 342,277,673,673.06/687,079.80
  6. Step 6: Final answer
    x = 498,162.91

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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.