Home / 877,187.76-1,315,829.49-278,105.59

Finding the Fourth Proportional to 877,187.76, 1,315,829.49 and 278,105.59

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Solution

The fourth proportional to 877,187.76, 1,315,829.49 and 278,105.59 is: 417,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,187.76 : 1,315,829.49 = 278,105.59 : x
  2. Step 2: Convert to fraction form
    877,187.76/1,315,829.49 = 278,105.59/x
  3. Step 3: Cross multiply
    877,187.76x = 1,315,829.49 × 278,105.59
  4. Step 4: Simplify right side
    877,187.76x = 365,939,536,655.85
  5. Step 5: Solve for x
    x = 365,939,536,655.85/877,187.76
  6. Step 6: Final answer
    x = 417,173.56

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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.