Home / 505,166.28-697,126.02-278,811.80

Finding the Fourth Proportional to 505,166.28, 697,126.02 and 278,811.80

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Solution

The fourth proportional to 505,166.28, 697,126.02 and 278,811.80 is: 384,758.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,166.28 : 697,126.02 = 278,811.80 : x
  2. Step 2: Convert to fraction form
    505,166.28/697,126.02 = 278,811.80/x
  3. Step 3: Cross multiply
    505,166.28x = 697,126.02 × 278,811.80
  4. Step 4: Simplify right side
    505,166.28x = 194,366,960,463.04
  5. Step 5: Solve for x
    x = 194,366,960,463.04/505,166.28
  6. Step 6: Final answer
    x = 384,758.38

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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.