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Finding the Fourth Proportional to 635,359.54, 953,039.64 and 398,868.29

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Solution

The fourth proportional to 635,359.54, 953,039.64 and 398,868.29 is: 598,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,359.54 : 953,039.64 = 398,868.29 : x
  2. Step 2: Convert to fraction form
    635,359.54/953,039.64 = 398,868.29/x
  3. Step 3: Cross multiply
    635,359.54x = 953,039.64 × 398,868.29
  4. Step 4: Simplify right side
    635,359.54x = 380,137,291,509.02
  5. Step 5: Solve for x
    x = 380,137,291,509.02/635,359.54
  6. Step 6: Final answer
    x = 598,302.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.