Home / 2,840,423.89-3,919,881.70-1,679,865

Finding the Fourth Proportional to 2,840,423.89, 3,919,881.70 and 1,679,865

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Solution

The fourth proportional to 2,840,423.89, 3,919,881.70 and 1,679,865 is: 2,318,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840,423.89 : 3,919,881.70 = 1,679,865 : x
  2. Step 2: Convert to fraction form
    2,840,423.89/3,919,881.70 = 1,679,865/x
  3. Step 3: Cross multiply
    2,840,423.89x = 3,919,881.70 × 1,679,865
  4. Step 4: Simplify right side
    2,840,423.89x = 6,584,872,063,571.18
  5. Step 5: Solve for x
    x = 6,584,872,063,571.18/2,840,423.89
  6. Step 6: Final answer
    x = 2,318,270.91

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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.