Home / 990,112.12-1,366,357.36-537,403.12

Finding the Fourth Proportional to 990,112.12, 1,366,357.36 and 537,403.12

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Solution

The fourth proportional to 990,112.12, 1,366,357.36 and 537,403.12 is: 741,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,112.12 : 1,366,357.36 = 537,403.12 : x
  2. Step 2: Convert to fraction form
    990,112.12/1,366,357.36 = 537,403.12/x
  3. Step 3: Cross multiply
    990,112.12x = 1,366,357.36 × 537,403.12
  4. Step 4: Simplify right side
    990,112.12x = 734,284,708,298.96
  5. Step 5: Solve for x
    x = 734,284,708,298.96/990,112.12
  6. Step 6: Final answer
    x = 741,617.74

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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.