Home / 801,678.85-1,106,316.57-439,125.28

Finding the Fourth Proportional to 801,678.85, 1,106,316.57 and 439,125.28

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Solution

The fourth proportional to 801,678.85, 1,106,316.57 and 439,125.28 is: 605,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,678.85 : 1,106,316.57 = 439,125.28 : x
  2. Step 2: Convert to fraction form
    801,678.85/1,106,316.57 = 439,125.28/x
  3. Step 3: Cross multiply
    801,678.85x = 1,106,316.57 × 439,125.28
  4. Step 4: Simplify right side
    801,678.85x = 485,811,573,569.89
  5. Step 5: Solve for x
    x = 485,811,573,569.89/801,678.85
  6. Step 6: Final answer
    x = 605,992.75

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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.