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Finding the Fourth Proportional to 631,050.72, 870,851.07 and 344,564.70

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Solution

The fourth proportional to 631,050.72, 870,851.07 and 344,564.70 is: 475,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,050.72 : 870,851.07 = 344,564.70 : x
  2. Step 2: Convert to fraction form
    631,050.72/870,851.07 = 344,564.70/x
  3. Step 3: Cross multiply
    631,050.72x = 870,851.07 × 344,564.70
  4. Step 4: Simplify right side
    631,050.72x = 300,064,537,679.23
  5. Step 5: Solve for x
    x = 300,064,537,679.23/631,050.72
  6. Step 6: Final answer
    x = 475,499.87

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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.