Home / 728,992.33-1,004,863.85-499,152.15

Finding the Fourth Proportional to 728,992.33, 1,004,863.85 and 499,152.15

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Solution

The fourth proportional to 728,992.33, 1,004,863.85 and 499,152.15 is: 688,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,992.33 : 1,004,863.85 = 499,152.15 : x
  2. Step 2: Convert to fraction form
    728,992.33/1,004,863.85 = 499,152.15/x
  3. Step 3: Cross multiply
    728,992.33x = 1,004,863.85 × 499,152.15
  4. Step 4: Simplify right side
    728,992.33x = 501,579,949,138.52
  5. Step 5: Solve for x
    x = 501,579,949,138.52/728,992.33
  6. Step 6: Final answer
    x = 688,045.58

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1.5x scale

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.