Home / 1,339,772.40-2,009,658.60-1,237,129.20

Finding the Fourth Proportional to 1,339,772.40, 2,009,658.60 and 1,237,129.20

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Solution

The fourth proportional to 1,339,772.40, 2,009,658.60 and 1,237,129.20 is: 1,855,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,772.40 : 2,009,658.60 = 1,237,129.20 : x
  2. Step 2: Convert to fraction form
    1,339,772.40/2,009,658.60 = 1,237,129.20/x
  3. Step 3: Cross multiply
    1,339,772.40x = 2,009,658.60 × 1,237,129.20
  4. Step 4: Simplify right side
    1,339,772.40x = 2,486,207,336,091.12
  5. Step 5: Solve for x
    x = 2,486,207,336,091.12/1,339,772.40
  6. Step 6: Final answer
    x = 1,855,693.80

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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.