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Finding the Fourth Proportional to 671,853.20, 927,157.41 and 370,047.20

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Solution

The fourth proportional to 671,853.20, 927,157.41 and 370,047.20 is: 510,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,853.20 : 927,157.41 = 370,047.20 : x
  2. Step 2: Convert to fraction form
    671,853.20/927,157.41 = 370,047.20/x
  3. Step 3: Cross multiply
    671,853.20x = 927,157.41 × 370,047.20
  4. Step 4: Simplify right side
    671,853.20x = 343,091,998,893.97
  5. Step 5: Solve for x
    x = 343,091,998,893.97/671,853.20
  6. Step 6: Final answer
    x = 510,665.13

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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.