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Finding the Fourth Proportional to 657,652.50, 907,561.26 and 355,846.50

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Solution

The fourth proportional to 657,652.50, 907,561.26 and 355,846.50 is: 491,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,652.50 : 907,561.26 = 355,846.50 : x
  2. Step 2: Convert to fraction form
    657,652.50/907,561.26 = 355,846.50/x
  3. Step 3: Cross multiply
    657,652.50x = 907,561.26 × 355,846.50
  4. Step 4: Simplify right side
    657,652.50x = 322,952,497,906.59
  5. Step 5: Solve for x
    x = 322,952,497,906.59/657,652.50
  6. Step 6: Final answer
    x = 491,068.61

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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.