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Finding the Fourth Proportional to 631,058.61, 870,857.42 and 344,576.67

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Solution

The fourth proportional to 631,058.61, 870,857.42 and 344,576.67 is: 475,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,058.61 : 870,857.42 = 344,576.67 : x
  2. Step 2: Convert to fraction form
    631,058.61/870,857.42 = 344,576.67/x
  3. Step 3: Cross multiply
    631,058.61x = 870,857.42 × 344,576.67
  4. Step 4: Simplify right side
    631,058.61x = 300,077,148,105.51
  5. Step 5: Solve for x
    x = 300,077,148,105.51/631,058.61
  6. Step 6: Final answer
    x = 475,513.91

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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.