Home / 993,138.30-1,489,707.45-362,072.70

Finding the Fourth Proportional to 993,138.30, 1,489,707.45 and 362,072.70

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Solution

The fourth proportional to 993,138.30, 1,489,707.45 and 362,072.70 is: 543,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,138.30 : 1,489,707.45 = 362,072.70 : x
  2. Step 2: Convert to fraction form
    993,138.30/1,489,707.45 = 362,072.70/x
  3. Step 3: Cross multiply
    993,138.30x = 1,489,707.45 × 362,072.70
  4. Step 4: Simplify right side
    993,138.30x = 539,382,398,631.62
  5. Step 5: Solve for x
    x = 539,382,398,631.62/993,138.30
  6. Step 6: Final answer
    x = 543,109.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.