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Finding the Fourth Proportional to 657,479.07, 985,395.31 and 353,125.29

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Solution

The fourth proportional to 657,479.07, 985,395.31 and 353,125.29 is: 529,245.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,479.07 : 985,395.31 = 353,125.29 : x
  2. Step 2: Convert to fraction form
    657,479.07/985,395.31 = 353,125.29/x
  3. Step 3: Cross multiply
    657,479.07x = 985,395.31 × 353,125.29
  4. Step 4: Simplify right side
    657,479.07x = 347,968,004,608.39
  5. Step 5: Solve for x
    x = 347,968,004,608.39/657,479.07
  6. Step 6: Final answer
    x = 529,245.75

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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.