Home / 1,239,114.60-1,858,211.10-491,005.80

Finding the Fourth Proportional to 1,239,114.60, 1,858,211.10 and 491,005.80

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Solution

The fourth proportional to 1,239,114.60, 1,858,211.10 and 491,005.80 is: 736,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,114.60 : 1,858,211.10 = 491,005.80 : x
  2. Step 2: Convert to fraction form
    1,239,114.60/1,858,211.10 = 491,005.80/x
  3. Step 3: Cross multiply
    1,239,114.60x = 1,858,211.10 × 491,005.80
  4. Step 4: Simplify right side
    1,239,114.60x = 912,392,427,724.38
  5. Step 5: Solve for x
    x = 912,392,427,724.38/1,239,114.60
  6. Step 6: Final answer
    x = 736,326.11

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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.