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Finding the Fourth Proportional to 631,040.68, 870,842.82 and 344,567.08

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Solution

The fourth proportional to 631,040.68, 870,842.82 and 344,567.08 is: 475,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,040.68 : 870,842.82 = 344,567.08 : x
  2. Step 2: Convert to fraction form
    631,040.68/870,842.82 = 344,567.08/x
  3. Step 3: Cross multiply
    631,040.68x = 870,842.82 × 344,567.08
  4. Step 4: Simplify right side
    631,040.68x = 300,063,767,626.37
  5. Step 5: Solve for x
    x = 300,063,767,626.37/631,040.68
  6. Step 6: Final answer
    x = 475,506.22

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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.