Home / 990,101.64-1,366,336.80-537,392.64

Finding the Fourth Proportional to 990,101.64, 1,366,336.80 and 537,392.64

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Solution

The fourth proportional to 990,101.64, 1,366,336.80 and 537,392.64 is: 741,599.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,101.64 : 1,366,336.80 = 537,392.64 : x
  2. Step 2: Convert to fraction form
    990,101.64/1,366,336.80 = 537,392.64/x
  3. Step 3: Cross multiply
    990,101.64x = 1,366,336.80 × 537,392.64
  4. Step 4: Simplify right side
    990,101.64x = 734,259,340,081.15
  5. Step 5: Solve for x
    x = 734,259,340,081.15/990,101.64
  6. Step 6: Final answer
    x = 741,599.96

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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.