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Finding the Fourth Proportional to 631,058.11, 870,856.72 and 344,576.17

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Solution

The fourth proportional to 631,058.11, 870,856.72 and 344,576.17 is: 475,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,058.11 : 870,856.72 = 344,576.17 : x
  2. Step 2: Convert to fraction form
    631,058.11/870,856.72 = 344,576.17/x
  3. Step 3: Cross multiply
    631,058.11x = 870,856.72 × 344,576.17
  4. Step 4: Simplify right side
    631,058.11x = 300,076,473,196.36
  5. Step 5: Solve for x
    x = 300,076,473,196.36/631,058.11
  6. Step 6: Final answer
    x = 475,513.22

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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.