Home / 816,350.13-1,126,576.64-448,842.78

Finding the Fourth Proportional to 816,350.13, 1,126,576.64 and 448,842.78

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Solution

The fourth proportional to 816,350.13, 1,126,576.64 and 448,842.78 is: 619,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,350.13 : 1,126,576.64 = 448,842.78 : x
  2. Step 2: Convert to fraction form
    816,350.13/1,126,576.64 = 448,842.78/x
  3. Step 3: Cross multiply
    816,350.13x = 1,126,576.64 × 448,842.78
  4. Step 4: Simplify right side
    816,350.13x = 505,655,788,736.45
  5. Step 5: Solve for x
    x = 505,655,788,736.45/816,350.13
  6. Step 6: Final answer
    x = 619,410.43

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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.