Home / 791,289.08-1,091,979.06-428,715.44

Finding the Fourth Proportional to 791,289.08, 1,091,979.06 and 428,715.44

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Solution

The fourth proportional to 791,289.08, 1,091,979.06 and 428,715.44 is: 591,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,289.08 : 1,091,979.06 = 428,715.44 : x
  2. Step 2: Convert to fraction form
    791,289.08/1,091,979.06 = 428,715.44/x
  3. Step 3: Cross multiply
    791,289.08x = 1,091,979.06 × 428,715.44
  4. Step 4: Simplify right side
    791,289.08x = 468,148,283,178.69
  5. Step 5: Solve for x
    x = 468,148,283,178.69/791,289.08
  6. Step 6: Final answer
    x = 591,627.38

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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.