Home / 1,231,936.72-1,847,971.32-390,554.08

Finding the Fourth Proportional to 1,231,936.72, 1,847,971.32 and 390,554.08

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Solution

The fourth proportional to 1,231,936.72, 1,847,971.32 and 390,554.08 is: 585,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,936.72 : 1,847,971.32 = 390,554.08 : x
  2. Step 2: Convert to fraction form
    1,231,936.72/1,847,971.32 = 390,554.08/x
  3. Step 3: Cross multiply
    1,231,936.72x = 1,847,971.32 × 390,554.08
  4. Step 4: Simplify right side
    1,231,936.72x = 721,732,738,748.99
  5. Step 5: Solve for x
    x = 721,732,738,748.99/1,231,936.72
  6. Step 6: Final answer
    x = 585,852.12

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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.