Home / 1,123,441.20-1,685,161.80-745,527.60

Finding the Fourth Proportional to 1,123,441.20, 1,685,161.80 and 745,527.60

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Solution

The fourth proportional to 1,123,441.20, 1,685,161.80 and 745,527.60 is: 1,118,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,441.20 : 1,685,161.80 = 745,527.60 : x
  2. Step 2: Convert to fraction form
    1,123,441.20/1,685,161.80 = 745,527.60/x
  3. Step 3: Cross multiply
    1,123,441.20x = 1,685,161.80 × 745,527.60
  4. Step 4: Simplify right side
    1,123,441.20x = 1,256,334,632,365.68
  5. Step 5: Solve for x
    x = 1,256,334,632,365.68/1,123,441.20
  6. Step 6: Final answer
    x = 1,118,291.40

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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.