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Finding the Fourth Proportional to 657,809.44, 907,777.13 and 356,003.44

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Solution

The fourth proportional to 657,809.44, 907,777.13 and 356,003.44 is: 491,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,809.44 : 907,777.13 = 356,003.44 : x
  2. Step 2: Convert to fraction form
    657,809.44/907,777.13 = 356,003.44/x
  3. Step 3: Cross multiply
    657,809.44x = 907,777.13 × 356,003.44
  4. Step 4: Simplify right side
    657,809.44x = 323,171,776,983.87
  5. Step 5: Solve for x
    x = 323,171,776,983.87/657,809.44
  6. Step 6: Final answer
    x = 491,284.80

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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.