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Finding the Fourth Proportional to 657,850.04, 907,840.63 and 385,922.57

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Solution

The fourth proportional to 657,850.04, 907,840.63 and 385,922.57 is: 532,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,850.04 : 907,840.63 = 385,922.57 : x
  2. Step 2: Convert to fraction form
    657,850.04/907,840.63 = 385,922.57/x
  3. Step 3: Cross multiply
    657,850.04x = 907,840.63 × 385,922.57
  4. Step 4: Simplify right side
    657,850.04x = 350,356,185,023.22
  5. Step 5: Solve for x
    x = 350,356,185,023.22/657,850.04
  6. Step 6: Final answer
    x = 532,577.59

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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.