Home / 1,787,276.84-2,680,072.70-649,236.78

Finding the Fourth Proportional to 1,787,276.84, 2,680,072.70 and 649,236.78

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Solution

The fourth proportional to 1,787,276.84, 2,680,072.70 and 649,236.78 is: 973,549.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,276.84 : 2,680,072.70 = 649,236.78 : x
  2. Step 2: Convert to fraction form
    1,787,276.84/2,680,072.70 = 649,236.78/x
  3. Step 3: Cross multiply
    1,787,276.84x = 2,680,072.70 × 649,236.78
  4. Step 4: Simplify right side
    1,787,276.84x = 1,740,001,766,667.72
  5. Step 5: Solve for x
    x = 1,740,001,766,667.72/1,787,276.84
  6. Step 6: Final answer
    x = 973,549.11

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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.