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Finding the Fourth Proportional to 657,794.37, 907,754.44 and 355,988.37

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Solution

The fourth proportional to 657,794.37, 907,754.44 and 355,988.37 is: 491,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,794.37 : 907,754.44 = 355,988.37 : x
  2. Step 2: Convert to fraction form
    657,794.37/907,754.44 = 355,988.37/x
  3. Step 3: Cross multiply
    657,794.37x = 907,754.44 × 355,988.37
  4. Step 4: Simplify right side
    657,794.37x = 323,150,023,455.86
  5. Step 5: Solve for x
    x = 323,150,023,455.86/657,794.37
  6. Step 6: Final answer
    x = 491,262.98

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1.5x scale

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.