Home / 2,124,279.10-3,186,415.74-986,419.10

Finding the Fourth Proportional to 2,124,279.10, 3,186,415.74 and 986,419.10

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Solution

The fourth proportional to 2,124,279.10, 3,186,415.74 and 986,419.10 is: 1,479,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,279.10 : 3,186,415.74 = 986,419.10 : x
  2. Step 2: Convert to fraction form
    2,124,279.10/3,186,415.74 = 986,419.10/x
  3. Step 3: Cross multiply
    2,124,279.10x = 3,186,415.74 × 986,419.10
  4. Step 4: Simplify right side
    2,124,279.10x = 3,143,141,346,476.63
  5. Step 5: Solve for x
    x = 3,143,141,346,476.63/2,124,279.10
  6. Step 6: Final answer
    x = 1,479,627.30

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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.