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Finding the Fourth Proportional to 635,031.81, 876,331.38 and 359,384.56

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Solution

The fourth proportional to 635,031.81, 876,331.38 and 359,384.56 is: 495,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,031.81 : 876,331.38 = 359,384.56 : x
  2. Step 2: Convert to fraction form
    635,031.81/876,331.38 = 359,384.56/x
  3. Step 3: Cross multiply
    635,031.81x = 876,331.38 × 359,384.56
  4. Step 4: Simplify right side
    635,031.81x = 314,939,966,572.36
  5. Step 5: Solve for x
    x = 314,939,966,572.36/635,031.81
  6. Step 6: Final answer
    x = 495,943.61

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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.