Home / 915,120.72-1,372,661.64-250,272.72

Finding the Fourth Proportional to 915,120.72, 1,372,661.64 and 250,272.72

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Solution

The fourth proportional to 915,120.72, 1,372,661.64 and 250,272.72 is: 375,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,120.72 : 1,372,661.64 = 250,272.72 : x
  2. Step 2: Convert to fraction form
    915,120.72/1,372,661.64 = 250,272.72/x
  3. Step 3: Cross multiply
    915,120.72x = 1,372,661.64 × 250,272.72
  4. Step 4: Simplify right side
    915,120.72x = 343,539,762,282.46
  5. Step 5: Solve for x
    x = 343,539,762,282.46/915,120.72
  6. Step 6: Final answer
    x = 375,403.76

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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.