Home / 686,341.54-1,029,497.73-187,705.54

Finding the Fourth Proportional to 686,341.54, 1,029,497.73 and 187,705.54

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Solution

The fourth proportional to 686,341.54, 1,029,497.73 and 187,705.54 is: 281,554.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,341.54 : 1,029,497.73 = 187,705.54 : x
  2. Step 2: Convert to fraction form
    686,341.54/1,029,497.73 = 187,705.54/x
  3. Step 3: Cross multiply
    686,341.54x = 1,029,497.73 × 187,705.54
  4. Step 4: Simplify right side
    686,341.54x = 193,242,427,338.42
  5. Step 5: Solve for x
    x = 193,242,427,338.42/686,341.54
  6. Step 6: Final answer
    x = 281,554.32

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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.