Home / 687,057.80-1,030,295.10-332,180.60

Finding the Fourth Proportional to 687,057.80, 1,030,295.10 and 332,180.60

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Solution

The fourth proportional to 687,057.80, 1,030,295.10 and 332,180.60 is: 498,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,057.80 : 1,030,295.10 = 332,180.60 : x
  2. Step 2: Convert to fraction form
    687,057.80/1,030,295.10 = 332,180.60/x
  3. Step 3: Cross multiply
    687,057.80x = 1,030,295.10 × 332,180.60
  4. Step 4: Simplify right side
    687,057.80x = 342,244,044,495.06
  5. Step 5: Solve for x
    x = 342,244,044,495.06/687,057.80
  6. Step 6: Final answer
    x = 498,129.92

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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.