Home / 1,239,240.98-1,858,838.78-340,679.10

Finding the Fourth Proportional to 1,239,240.98, 1,858,838.78 and 340,679.10

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Solution

The fourth proportional to 1,239,240.98, 1,858,838.78 and 340,679.10 is: 511,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,240.98 : 1,858,838.78 = 340,679.10 : x
  2. Step 2: Convert to fraction form
    1,239,240.98/1,858,838.78 = 340,679.10/x
  3. Step 3: Cross multiply
    1,239,240.98x = 1,858,838.78 × 340,679.10
  4. Step 4: Simplify right side
    1,239,240.98x = 633,267,522,615.50
  5. Step 5: Solve for x
    x = 633,267,522,615.50/1,239,240.98
  6. Step 6: Final answer
    x = 511,012.41

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Double scale
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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.