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Finding the Fourth Proportional to 505,425.83, 697,491.02 and 275,984.71

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Solution

The fourth proportional to 505,425.83, 697,491.02 and 275,984.71 is: 380,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,425.83 : 697,491.02 = 275,984.71 : x
  2. Step 2: Convert to fraction form
    505,425.83/697,491.02 = 275,984.71/x
  3. Step 3: Cross multiply
    505,425.83x = 697,491.02 × 275,984.71
  4. Step 4: Simplify right side
    505,425.83x = 192,496,856,882.30
  5. Step 5: Solve for x
    x = 192,496,856,882.30/505,425.83
  6. Step 6: Final answer
    x = 380,860.74

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1.5x scale

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.