Home / 888,459.64-1,332,688.38-289,419.82

Finding the Fourth Proportional to 888,459.64, 1,332,688.38 and 289,419.82

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Solution

The fourth proportional to 888,459.64, 1,332,688.38 and 289,419.82 is: 434,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,459.64 : 1,332,688.38 = 289,419.82 : x
  2. Step 2: Convert to fraction form
    888,459.64/1,332,688.38 = 289,419.82/x
  3. Step 3: Cross multiply
    888,459.64x = 1,332,688.38 × 289,419.82
  4. Step 4: Simplify right side
    888,459.64x = 385,706,431,055.69
  5. Step 5: Solve for x
    x = 385,706,431,055.69/888,459.64
  6. Step 6: Final answer
    x = 434,129.38

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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.