Home / 816,435.52-1,126,678.07-448,936.72

Finding the Fourth Proportional to 816,435.52, 1,126,678.07 and 448,936.72

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Solution

The fourth proportional to 816,435.52, 1,126,678.07 and 448,936.72 is: 619,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,435.52 : 1,126,678.07 = 448,936.72 : x
  2. Step 2: Convert to fraction form
    816,435.52/1,126,678.07 = 448,936.72/x
  3. Step 3: Cross multiply
    816,435.52x = 1,126,678.07 × 448,936.72
  4. Step 4: Simplify right side
    816,435.52x = 505,807,157,241.73
  5. Step 5: Solve for x
    x = 505,807,157,241.73/816,435.52
  6. Step 6: Final answer
    x = 619,531.05

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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.