Home / 1,239,857.72-1,711,060.48-688,575.96

Finding the Fourth Proportional to 1,239,857.72, 1,711,060.48 and 688,575.96

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Solution

The fourth proportional to 1,239,857.72, 1,711,060.48 and 688,575.96 is: 950,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,857.72 : 1,711,060.48 = 688,575.96 : x
  2. Step 2: Convert to fraction form
    1,239,857.72/1,711,060.48 = 688,575.96/x
  3. Step 3: Cross multiply
    1,239,857.72x = 1,711,060.48 × 688,575.96
  4. Step 4: Simplify right side
    1,239,857.72x = 1,178,195,112,634.06
  5. Step 5: Solve for x
    x = 1,178,195,112,634.06/1,239,857.72
  6. Step 6: Final answer
    x = 950,266.38

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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.