Home / 990,109.38-1,366,353.56-537,400.38

Finding the Fourth Proportional to 990,109.38, 1,366,353.56 and 537,400.38

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Solution

The fourth proportional to 990,109.38, 1,366,353.56 and 537,400.38 is: 741,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,109.38 : 1,366,353.56 = 537,400.38 : x
  2. Step 2: Convert to fraction form
    990,109.38/1,366,353.56 = 537,400.38/x
  3. Step 3: Cross multiply
    990,109.38x = 1,366,353.56 × 537,400.38
  4. Step 4: Simplify right side
    990,109.38x = 734,278,922,358.35
  5. Step 5: Solve for x
    x = 734,278,922,358.35/990,109.38
  6. Step 6: Final answer
    x = 741,613.94

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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.