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Finding the Fourth Proportional to 671,980.64, 927,333.12 and 370,174.56

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Solution

The fourth proportional to 671,980.64, 927,333.12 and 370,174.56 is: 510,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,980.64 : 927,333.12 = 370,174.56 : x
  2. Step 2: Convert to fraction form
    671,980.64/927,333.12 = 370,174.56/x
  3. Step 3: Cross multiply
    671,980.64x = 927,333.12 × 370,174.56
  4. Step 4: Simplify right side
    671,980.64x = 343,275,129,669.43
  5. Step 5: Solve for x
    x = 343,275,129,669.43/671,980.64
  6. Step 6: Final answer
    x = 510,840.80

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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.