Home / 934,836.99-1,401,148.30-428,971.59

Finding the Fourth Proportional to 934,836.99, 1,401,148.30 and 428,971.59

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Solution

The fourth proportional to 934,836.99, 1,401,148.30 and 428,971.59 is: 642,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,836.99 : 1,401,148.30 = 428,971.59 : x
  2. Step 2: Convert to fraction form
    934,836.99/1,401,148.30 = 428,971.59/x
  3. Step 3: Cross multiply
    934,836.99x = 1,401,148.30 × 428,971.59
  4. Step 4: Simplify right side
    934,836.99x = 601,052,814,076.80
  5. Step 5: Solve for x
    x = 601,052,814,076.80/934,836.99
  6. Step 6: Final answer
    x = 642,949.33

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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.