Home / 1,219,308.48-1,682,406.72-766,337.76

Finding the Fourth Proportional to 1,219,308.48, 1,682,406.72 and 766,337.76

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Solution

The fourth proportional to 1,219,308.48, 1,682,406.72 and 766,337.76 is: 1,057,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,308.48 : 1,682,406.72 = 766,337.76 : x
  2. Step 2: Convert to fraction form
    1,219,308.48/1,682,406.72 = 766,337.76/x
  3. Step 3: Cross multiply
    1,219,308.48x = 1,682,406.72 × 766,337.76
  4. Step 4: Simplify right side
    1,219,308.48x = 1,289,291,797,213.75
  5. Step 5: Solve for x
    x = 1,289,291,797,213.75/1,219,308.48
  6. Step 6: Final answer
    x = 1,057,395.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.