Home / 786,571.74-1,085,476.47-447,042.30

Finding the Fourth Proportional to 786,571.74, 1,085,476.47 and 447,042.30

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Solution

The fourth proportional to 786,571.74, 1,085,476.47 and 447,042.30 is: 616,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,571.74 : 1,085,476.47 = 447,042.30 : x
  2. Step 2: Convert to fraction form
    786,571.74/1,085,476.47 = 447,042.30/x
  3. Step 3: Cross multiply
    786,571.74x = 1,085,476.47 × 447,042.30
  4. Step 4: Simplify right side
    786,571.74x = 485,253,897,744.68
  5. Step 5: Solve for x
    x = 485,253,897,744.68/786,571.74
  6. Step 6: Final answer
    x = 616,922.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.