Home / 728,239-1,004,558.20-455,834.04

Finding the Fourth Proportional to 728,239, 1,004,558.20 and 455,834.04

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Solution

The fourth proportional to 728,239, 1,004,558.20 and 455,834.04 is: 628,793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,239 : 1,004,558.20 = 455,834.04 : x
  2. Step 2: Convert to fraction form
    728,239/1,004,558.20 = 455,834.04/x
  3. Step 3: Cross multiply
    728,239x = 1,004,558.20 × 455,834.04
  4. Step 4: Simplify right side
    728,239x = 457,911,822,721.13
  5. Step 5: Solve for x
    x = 457,911,822,721.13/728,239
  6. Step 6: Final answer
    x = 628,793.33

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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.