Home / 877,076.52-1,315,503.92-278,043.56

Finding the Fourth Proportional to 877,076.52, 1,315,503.92 and 278,043.56

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Solution

The fourth proportional to 877,076.52, 1,315,503.92 and 278,043.56 is: 417,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,076.52 : 1,315,503.92 = 278,043.56 : x
  2. Step 2: Convert to fraction form
    877,076.52/1,315,503.92 = 278,043.56/x
  3. Step 3: Cross multiply
    877,076.52x = 1,315,503.92 × 278,043.56
  4. Step 4: Simplify right side
    877,076.52x = 365,767,393,110.76
  5. Step 5: Solve for x
    x = 365,767,393,110.76/877,076.52
  6. Step 6: Final answer
    x = 417,030.20

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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.