Home / 1,231,037.20-1,846,555.80-389,654.80

Finding the Fourth Proportional to 1,231,037.20, 1,846,555.80 and 389,654.80

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Solution

The fourth proportional to 1,231,037.20, 1,846,555.80 and 389,654.80 is: 584,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,037.20 : 1,846,555.80 = 389,654.80 : x
  2. Step 2: Convert to fraction form
    1,231,037.20/1,846,555.80 = 389,654.80/x
  3. Step 3: Cross multiply
    1,231,037.20x = 1,846,555.80 × 389,654.80
  4. Step 4: Simplify right side
    1,231,037.20x = 719,519,330,937.84
  5. Step 5: Solve for x
    x = 719,519,330,937.84/1,231,037.20
  6. Step 6: Final answer
    x = 584,482.20

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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.