Home / 1,687,769.40-2,531,664.66-690,497.40

Finding the Fourth Proportional to 1,687,769.40, 2,531,664.66 and 690,497.40

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Solution

The fourth proportional to 1,687,769.40, 2,531,664.66 and 690,497.40 is: 1,035,750.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,769.40 : 2,531,664.66 = 690,497.40 : x
  2. Step 2: Convert to fraction form
    1,687,769.40/2,531,664.66 = 690,497.40/x
  3. Step 3: Cross multiply
    1,687,769.40x = 2,531,664.66 × 690,497.40
  4. Step 4: Simplify right side
    1,687,769.40x = 1,748,107,865,401.88
  5. Step 5: Solve for x
    x = 1,748,107,865,401.88/1,687,769.40
  6. Step 6: Final answer
    x = 1,035,750.42

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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.