Home / 1,154,176.40-1,728,640.20-729,023.60

Finding the Fourth Proportional to 1,154,176.40, 1,728,640.20 and 729,023.60

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Solution

The fourth proportional to 1,154,176.40, 1,728,640.20 and 729,023.60 is: 1,091,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,176.40 : 1,728,640.20 = 729,023.60 : x
  2. Step 2: Convert to fraction form
    1,154,176.40/1,728,640.20 = 729,023.60/x
  3. Step 3: Cross multiply
    1,154,176.40x = 1,728,640.20 × 729,023.60
  4. Step 4: Simplify right side
    1,154,176.40x = 1,260,219,501,708.72
  5. Step 5: Solve for x
    x = 1,260,219,501,708.72/1,154,176.40
  6. Step 6: Final answer
    x = 1,091,877.72

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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.