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Finding the Fourth Proportional to 631,064.58, 870,872.31 and 344,584.68

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Solution

The fourth proportional to 631,064.58, 870,872.31 and 344,584.68 is: 475,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,064.58 : 870,872.31 = 344,584.68 : x
  2. Step 2: Convert to fraction form
    631,064.58/870,872.31 = 344,584.68/x
  3. Step 3: Cross multiply
    631,064.58x = 870,872.31 × 344,584.68
  4. Step 4: Simplify right side
    631,064.58x = 300,089,256,262.21
  5. Step 5: Solve for x
    x = 300,089,256,262.21/631,064.58
  6. Step 6: Final answer
    x = 475,528.60

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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.