Home / 909,892.22-1,364,789.04-278,807.88

Finding the Fourth Proportional to 909,892.22, 1,364,789.04 and 278,807.88

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Solution

The fourth proportional to 909,892.22, 1,364,789.04 and 278,807.88 is: 418,196.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,892.22 : 1,364,789.04 = 278,807.88 : x
  2. Step 2: Convert to fraction form
    909,892.22/1,364,789.04 = 278,807.88/x
  3. Step 3: Cross multiply
    909,892.22x = 1,364,789.04 × 278,807.88
  4. Step 4: Simplify right side
    909,892.22x = 380,513,938,889.64
  5. Step 5: Solve for x
    x = 380,513,938,889.64/909,892.22
  6. Step 6: Final answer
    x = 418,196.72

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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.