Home / 839,995.80-1,259,666.10-366,358.20

Finding the Fourth Proportional to 839,995.80, 1,259,666.10 and 366,358.20

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Solution

The fourth proportional to 839,995.80, 1,259,666.10 and 366,358.20 is: 549,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,995.80 : 1,259,666.10 = 366,358.20 : x
  2. Step 2: Convert to fraction form
    839,995.80/1,259,666.10 = 366,358.20/x
  3. Step 3: Cross multiply
    839,995.80x = 1,259,666.10 × 366,358.20
  4. Step 4: Simplify right side
    839,995.80x = 461,489,004,997.02
  5. Step 5: Solve for x
    x = 461,489,004,997.02/839,995.80
  6. Step 6: Final answer
    x = 549,394.42

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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.