Home / 819,602.73-1,131,162.71-480,206.25

Finding the Fourth Proportional to 819,602.73, 1,131,162.71 and 480,206.25

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Solution

The fourth proportional to 819,602.73, 1,131,162.71 and 480,206.25 is: 662,749.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,602.73 : 1,131,162.71 = 480,206.25 : x
  2. Step 2: Convert to fraction form
    819,602.73/1,131,162.71 = 480,206.25/x
  3. Step 3: Cross multiply
    819,602.73x = 1,131,162.71 × 480,206.25
  4. Step 4: Simplify right side
    819,602.73x = 543,191,400,707.91
  5. Step 5: Solve for x
    x = 543,191,400,707.91/819,602.73
  6. Step 6: Final answer
    x = 662,749.62

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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.