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Finding the Fourth Proportional to 608,891.06, 840,683.13 and 379,540.10

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Solution

The fourth proportional to 608,891.06, 840,683.13 and 379,540.10 is: 524,023.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,891.06 : 840,683.13 = 379,540.10 : x
  2. Step 2: Convert to fraction form
    608,891.06/840,683.13 = 379,540.10/x
  3. Step 3: Cross multiply
    608,891.06x = 840,683.13 × 379,540.10
  4. Step 4: Simplify right side
    608,891.06x = 319,072,959,228.51
  5. Step 5: Solve for x
    x = 319,072,959,228.51/608,891.06
  6. Step 6: Final answer
    x = 524,023.06

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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.