Home / 1,665,885.48-2,496,211.74-1,287,732.84

Finding the Fourth Proportional to 1,665,885.48, 2,496,211.74 and 1,287,732.84

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Solution

The fourth proportional to 1,665,885.48, 2,496,211.74 and 1,287,732.84 is: 1,929,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,885.48 : 2,496,211.74 = 1,287,732.84 : x
  2. Step 2: Convert to fraction form
    1,665,885.48/2,496,211.74 = 1,287,732.84/x
  3. Step 3: Cross multiply
    1,665,885.48x = 2,496,211.74 × 1,287,732.84
  4. Step 4: Simplify right side
    1,665,885.48x = 3,214,453,833,191.54
  5. Step 5: Solve for x
    x = 3,214,453,833,191.54/1,665,885.48
  6. Step 6: Final answer
    x = 1,929,576.72

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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.