Home / 1,087,667.20-1,631,500.80-457,811.20

Finding the Fourth Proportional to 1,087,667.20, 1,631,500.80 and 457,811.20

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Solution

The fourth proportional to 1,087,667.20, 1,631,500.80 and 457,811.20 is: 686,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,667.20 : 1,631,500.80 = 457,811.20 : x
  2. Step 2: Convert to fraction form
    1,087,667.20/1,631,500.80 = 457,811.20/x
  3. Step 3: Cross multiply
    1,087,667.20x = 1,631,500.80 × 457,811.20
  4. Step 4: Simplify right side
    1,087,667.20x = 746,919,339,048.96
  5. Step 5: Solve for x
    x = 746,919,339,048.96/1,087,667.20
  6. Step 6: Final answer
    x = 686,716.80

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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.