Home / 1,239,857.70-1,711,060.46-688,575.92

Finding the Fourth Proportional to 1,239,857.70, 1,711,060.46 and 688,575.92

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Solution

The fourth proportional to 1,239,857.70, 1,711,060.46 and 688,575.92 is: 950,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,857.70 : 1,711,060.46 = 688,575.92 : x
  2. Step 2: Convert to fraction form
    1,239,857.70/1,711,060.46 = 688,575.92/x
  3. Step 3: Cross multiply
    1,239,857.70x = 1,711,060.46 × 688,575.92
  4. Step 4: Simplify right side
    1,239,857.70x = 1,178,195,030,420.12
  5. Step 5: Solve for x
    x = 1,178,195,030,420.12/1,239,857.70
  6. Step 6: Final answer
    x = 950,266.33

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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.