Home / 1,339,897.20-2,005,698.60-777,260.40

Finding the Fourth Proportional to 1,339,897.20, 2,005,698.60 and 777,260.40

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Solution

The fourth proportional to 1,339,897.20, 2,005,698.60 and 777,260.40 is: 1,163,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,897.20 : 2,005,698.60 = 777,260.40 : x
  2. Step 2: Convert to fraction form
    1,339,897.20/2,005,698.60 = 777,260.40/x
  3. Step 3: Cross multiply
    1,339,897.20x = 2,005,698.60 × 777,260.40
  4. Step 4: Simplify right side
    1,339,897.20x = 1,558,950,096,115.44
  5. Step 5: Solve for x
    x = 1,558,950,096,115.44/1,339,897.20
  6. Step 6: Final answer
    x = 1,163,484.85

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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.