Home / 745,746.78-1,029,101.52-455,843.73

Finding the Fourth Proportional to 745,746.78, 1,029,101.52 and 455,843.73

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Solution

The fourth proportional to 745,746.78, 1,029,101.52 and 455,843.73 is: 629,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,746.78 : 1,029,101.52 = 455,843.73 : x
  2. Step 2: Convert to fraction form
    745,746.78/1,029,101.52 = 455,843.73/x
  3. Step 3: Cross multiply
    745,746.78x = 1,029,101.52 × 455,843.73
  4. Step 4: Simplify right side
    745,746.78x = 469,109,475,425.47
  5. Step 5: Solve for x
    x = 469,109,475,425.47/745,746.78
  6. Step 6: Final answer
    x = 629,046.60

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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.