Home / 821,040.40-1,232,827.80-447,792.40

Finding the Fourth Proportional to 821,040.40, 1,232,827.80 and 447,792.40

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Solution

The fourth proportional to 821,040.40, 1,232,827.80 and 447,792.40 is: 672,379.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,040.40 : 1,232,827.80 = 447,792.40 : x
  2. Step 2: Convert to fraction form
    821,040.40/1,232,827.80 = 447,792.40/x
  3. Step 3: Cross multiply
    821,040.40x = 1,232,827.80 × 447,792.40
  4. Step 4: Simplify right side
    821,040.40x = 552,050,919,348.72
  5. Step 5: Solve for x
    x = 552,050,919,348.72/821,040.40
  6. Step 6: Final answer
    x = 672,379.73

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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.