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Finding the Fourth Proportional to 657,792.37, 907,751.68 and 355,986.37

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Solution

The fourth proportional to 657,792.37, 907,751.68 and 355,986.37 is: 491,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,792.37 : 907,751.68 = 355,986.37 : x
  2. Step 2: Convert to fraction form
    657,792.37/907,751.68 = 355,986.37/x
  3. Step 3: Cross multiply
    657,792.37x = 907,751.68 × 355,986.37
  4. Step 4: Simplify right side
    657,792.37x = 323,147,225,424.60
  5. Step 5: Solve for x
    x = 323,147,225,424.60/657,792.37
  6. Step 6: Final answer
    x = 491,260.22

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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.