Home / 553,764.42-764,194.93-299,115.61

Finding the Fourth Proportional to 553,764.42, 764,194.93 and 299,115.61

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Solution

The fourth proportional to 553,764.42, 764,194.93 and 299,115.61 is: 412,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,764.42 : 764,194.93 = 299,115.61 : x
  2. Step 2: Convert to fraction form
    553,764.42/764,194.93 = 299,115.61/x
  3. Step 3: Cross multiply
    553,764.42x = 764,194.93 × 299,115.61
  4. Step 4: Simplify right side
    553,764.42x = 228,582,632,645.86
  5. Step 5: Solve for x
    x = 228,582,632,645.86/553,764.42
  6. Step 6: Final answer
    x = 412,779.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.