Home / 4,269,619.80-6,404,421.78-1,390,983.21

Finding the Fourth Proportional to 4,269,619.80, 6,404,421.78 and 1,390,983.21

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Solution

The fourth proportional to 4,269,619.80, 6,404,421.78 and 1,390,983.21 is: 2,086,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,269,619.80 : 6,404,421.78 = 1,390,983.21 : x
  2. Step 2: Convert to fraction form
    4,269,619.80/6,404,421.78 = 1,390,983.21/x
  3. Step 3: Cross multiply
    4,269,619.80x = 6,404,421.78 × 1,390,983.21
  4. Step 4: Simplify right side
    4,269,619.80x = 8,908,443,165,738.32
  5. Step 5: Solve for x
    x = 8,908,443,165,738.32/4,269,619.80
  6. Step 6: Final answer
    x = 2,086,472.23

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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.