Home / 993,145.80-1,489,718.70-362,080.20

Finding the Fourth Proportional to 993,145.80, 1,489,718.70 and 362,080.20

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Solution

The fourth proportional to 993,145.80, 1,489,718.70 and 362,080.20 is: 543,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,145.80 : 1,489,718.70 = 362,080.20 : x
  2. Step 2: Convert to fraction form
    993,145.80/1,489,718.70 = 362,080.20/x
  3. Step 3: Cross multiply
    993,145.80x = 1,489,718.70 × 362,080.20
  4. Step 4: Simplify right side
    993,145.80x = 539,397,644,839.74
  5. Step 5: Solve for x
    x = 539,397,644,839.74/993,145.80
  6. Step 6: Final answer
    x = 543,120.30

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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.