Home / 687,065.80-1,030,307.10-332,188.60

Finding the Fourth Proportional to 687,065.80, 1,030,307.10 and 332,188.60

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Solution

The fourth proportional to 687,065.80, 1,030,307.10 and 332,188.60 is: 498,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,065.80 : 1,030,307.10 = 332,188.60 : x
  2. Step 2: Convert to fraction form
    687,065.80/1,030,307.10 = 332,188.60/x
  3. Step 3: Cross multiply
    687,065.80x = 1,030,307.10 × 332,188.60
  4. Step 4: Simplify right side
    687,065.80x = 342,256,273,119.06
  5. Step 5: Solve for x
    x = 342,256,273,119.06/687,065.80
  6. Step 6: Final answer
    x = 498,141.91

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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.