Home / 764,543.88-1,146,831.62-278,209.35

Finding the Fourth Proportional to 764,543.88, 1,146,831.62 and 278,209.35

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Solution

The fourth proportional to 764,543.88, 1,146,831.62 and 278,209.35 is: 417,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,543.88 : 1,146,831.62 = 278,209.35 : x
  2. Step 2: Convert to fraction form
    764,543.88/1,146,831.62 = 278,209.35/x
  3. Step 3: Cross multiply
    764,543.88x = 1,146,831.62 × 278,209.35
  4. Step 4: Simplify right side
    764,543.88x = 319,059,278,168.60
  5. Step 5: Solve for x
    x = 319,059,278,168.60/764,543.88
  6. Step 6: Final answer
    x = 417,319.77

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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.