Home / 1,280,867.76-1,921,409.64-382,251.60

Finding the Fourth Proportional to 1,280,867.76, 1,921,409.64 and 382,251.60

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Solution

The fourth proportional to 1,280,867.76, 1,921,409.64 and 382,251.60 is: 573,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,867.76 : 1,921,409.64 = 382,251.60 : x
  2. Step 2: Convert to fraction form
    1,280,867.76/1,921,409.64 = 382,251.60/x
  3. Step 3: Cross multiply
    1,280,867.76x = 1,921,409.64 × 382,251.60
  4. Step 4: Simplify right side
    1,280,867.76x = 734,461,909,145.42
  5. Step 5: Solve for x
    x = 734,461,909,145.42/1,280,867.76
  6. Step 6: Final answer
    x = 573,409.63

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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.