Home / 687,003.60-1,030,505.40-188,366.80

Finding the Fourth Proportional to 687,003.60, 1,030,505.40 and 188,366.80

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Solution

The fourth proportional to 687,003.60, 1,030,505.40 and 188,366.80 is: 282,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,003.60 : 1,030,505.40 = 188,366.80 : x
  2. Step 2: Convert to fraction form
    687,003.60/1,030,505.40 = 188,366.80/x
  3. Step 3: Cross multiply
    687,003.60x = 1,030,505.40 × 188,366.80
  4. Step 4: Simplify right side
    687,003.60x = 194,113,004,580.72
  5. Step 5: Solve for x
    x = 194,113,004,580.72/687,003.60
  6. Step 6: Final answer
    x = 282,550.20

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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.