Home / 801,685.35-1,106,325.54-439,131.78

Finding the Fourth Proportional to 801,685.35, 1,106,325.54 and 439,131.78

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Solution

The fourth proportional to 801,685.35, 1,106,325.54 and 439,131.78 is: 606,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,685.35 : 1,106,325.54 = 439,131.78 : x
  2. Step 2: Convert to fraction form
    801,685.35/1,106,325.54 = 439,131.78/x
  3. Step 3: Cross multiply
    801,685.35x = 1,106,325.54 × 439,131.78
  4. Step 4: Simplify right side
    801,685.35x = 485,822,703,639.66
  5. Step 5: Solve for x
    x = 485,822,703,639.66/801,685.35
  6. Step 6: Final answer
    x = 606,001.72

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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.