Home / 839,101.20-1,258,651.80-240,098.10

Finding the Fourth Proportional to 839,101.20, 1,258,651.80 and 240,098.10

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Solution

The fourth proportional to 839,101.20, 1,258,651.80 and 240,098.10 is: 360,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,101.20 : 1,258,651.80 = 240,098.10 : x
  2. Step 2: Convert to fraction form
    839,101.20/1,258,651.80 = 240,098.10/x
  3. Step 3: Cross multiply
    839,101.20x = 1,258,651.80 × 240,098.10
  4. Step 4: Simplify right side
    839,101.20x = 302,199,905,741.58
  5. Step 5: Solve for x
    x = 302,199,905,741.58/839,101.20
  6. Step 6: Final answer
    x = 360,147.15

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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.