Home / 816,000.32-1,126,105.80-448,470.79

Finding the Fourth Proportional to 816,000.32, 1,126,105.80 and 448,470.79

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Solution

The fourth proportional to 816,000.32, 1,126,105.80 and 448,470.79 is: 618,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,000.32 : 1,126,105.80 = 448,470.79 : x
  2. Step 2: Convert to fraction form
    816,000.32/1,126,105.80 = 448,470.79/x
  3. Step 3: Cross multiply
    816,000.32x = 1,126,105.80 × 448,470.79
  4. Step 4: Simplify right side
    816,000.32x = 505,025,557,749.58
  5. Step 5: Solve for x
    x = 505,025,557,749.58/816,000.32
  6. Step 6: Final answer
    x = 618,903.63

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Double scale
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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.