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Finding the Fourth Proportional to 672,720.33, 928,309.91 and 370,916.49

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Solution

The fourth proportional to 672,720.33, 928,309.91 and 370,916.49 is: 511,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,720.33 : 928,309.91 = 370,916.49 : x
  2. Step 2: Convert to fraction form
    672,720.33/928,309.91 = 370,916.49/x
  3. Step 3: Cross multiply
    672,720.33x = 928,309.91 × 370,916.49
  4. Step 4: Simplify right side
    672,720.33x = 344,325,451,594.83
  5. Step 5: Solve for x
    x = 344,325,451,594.83/672,720.33
  6. Step 6: Final answer
    x = 511,840.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.