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Finding the Fourth Proportional to 424,478.81, 636,564.05 and 232,495.75

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Solution

The fourth proportional to 424,478.81, 636,564.05 and 232,495.75 is: 348,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,478.81 : 636,564.05 = 232,495.75 : x
  2. Step 2: Convert to fraction form
    424,478.81/636,564.05 = 232,495.75/x
  3. Step 3: Cross multiply
    424,478.81x = 636,564.05 × 232,495.75
  4. Step 4: Simplify right side
    424,478.81x = 147,998,436,732.87
  5. Step 5: Solve for x
    x = 147,998,436,732.87/424,478.81
  6. Step 6: Final answer
    x = 348,659.18

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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.