Home / 853,824.15-1,282,212.45-455,243.40

Finding the Fourth Proportional to 853,824.15, 1,282,212.45 and 455,243.40

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Solution

The fourth proportional to 853,824.15, 1,282,212.45 and 455,243.40 is: 683,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,824.15 : 1,282,212.45 = 455,243.40 : x
  2. Step 2: Convert to fraction form
    853,824.15/1,282,212.45 = 455,243.40/x
  3. Step 3: Cross multiply
    853,824.15x = 1,282,212.45 × 455,243.40
  4. Step 4: Simplify right side
    853,824.15x = 583,718,755,260.33
  5. Step 5: Solve for x
    x = 583,718,755,260.33/853,824.15
  6. Step 6: Final answer
    x = 683,652.20

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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.