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Finding the Fourth Proportional to 458,097.01, 687,145.06 and 313,860.71

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Solution

The fourth proportional to 458,097.01, 687,145.06 and 313,860.71 is: 470,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,097.01 : 687,145.06 = 313,860.71 : x
  2. Step 2: Convert to fraction form
    458,097.01/687,145.06 = 313,860.71/x
  3. Step 3: Cross multiply
    458,097.01x = 687,145.06 × 313,860.71
  4. Step 4: Simplify right side
    458,097.01x = 215,667,836,404.59
  5. Step 5: Solve for x
    x = 215,667,836,404.59/458,097.01
  6. Step 6: Final answer
    x = 470,790.75

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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.