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Finding the Fourth Proportional to 638,797.19, 958,860.38 and 470,507.54

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Solution

The fourth proportional to 638,797.19, 958,860.38 and 470,507.54 is: 706,250.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,797.19 : 958,860.38 = 470,507.54 : x
  2. Step 2: Convert to fraction form
    638,797.19/958,860.38 = 470,507.54/x
  3. Step 3: Cross multiply
    638,797.19x = 958,860.38 × 470,507.54
  4. Step 4: Simplify right side
    638,797.19x = 451,151,034,979.23
  5. Step 5: Solve for x
    x = 451,151,034,979.23/638,797.19
  6. Step 6: Final answer
    x = 706,250.82

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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.