Home / 1,269,568.64-1,903,128.23-427,661.12

Finding the Fourth Proportional to 1,269,568.64, 1,903,128.23 and 427,661.12

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Solution

The fourth proportional to 1,269,568.64, 1,903,128.23 and 427,661.12 is: 641,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,568.64 : 1,903,128.23 = 427,661.12 : x
  2. Step 2: Convert to fraction form
    1,269,568.64/1,903,128.23 = 427,661.12/x
  3. Step 3: Cross multiply
    1,269,568.64x = 1,903,128.23 × 427,661.12
  4. Step 4: Simplify right side
    1,269,568.64x = 813,893,950,345.42
  5. Step 5: Solve for x
    x = 813,893,950,345.42/1,269,568.64
  6. Step 6: Final answer
    x = 641,079.12

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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.