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Finding the Fourth Proportional to 657,181.80, 985,772.70 and 372,762.45

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Solution

The fourth proportional to 657,181.80, 985,772.70 and 372,762.45 is: 559,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,181.80 : 985,772.70 = 372,762.45 : x
  2. Step 2: Convert to fraction form
    657,181.80/985,772.70 = 372,762.45/x
  3. Step 3: Cross multiply
    657,181.80x = 985,772.70 × 372,762.45
  4. Step 4: Simplify right side
    657,181.80x = 367,459,046,795.12
  5. Step 5: Solve for x
    x = 367,459,046,795.12/657,181.80
  6. Step 6: Final answer
    x = 559,143.68

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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.