Home / 499,427.68-749,043.78-415,725.52

Finding the Fourth Proportional to 499,427.68, 749,043.78 and 415,725.52

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Solution

The fourth proportional to 499,427.68, 749,043.78 and 415,725.52 is: 623,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,427.68 : 749,043.78 = 415,725.52 : x
  2. Step 2: Convert to fraction form
    499,427.68/749,043.78 = 415,725.52/x
  3. Step 3: Cross multiply
    499,427.68x = 749,043.78 × 415,725.52
  4. Step 4: Simplify right side
    499,427.68x = 311,396,614,943.27
  5. Step 5: Solve for x
    x = 311,396,614,943.27/499,427.68
  6. Step 6: Final answer
    x = 623,506.92

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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.