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Finding the Fourth Proportional to 657,202.80, 985,804.20 and 372,783.45

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Solution

The fourth proportional to 657,202.80, 985,804.20 and 372,783.45 is: 559,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,202.80 : 985,804.20 = 372,783.45 : x
  2. Step 2: Convert to fraction form
    657,202.80/985,804.20 = 372,783.45/x
  3. Step 3: Cross multiply
    657,202.80x = 985,804.20 × 372,783.45
  4. Step 4: Simplify right side
    657,202.80x = 367,491,490,700.49
  5. Step 5: Solve for x
    x = 367,491,490,700.49/657,202.80
  6. Step 6: Final answer
    x = 559,175.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.