Home / 1,045,990.80-1,568,986.20-287,830.80

Finding the Fourth Proportional to 1,045,990.80, 1,568,986.20 and 287,830.80

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Solution

The fourth proportional to 1,045,990.80, 1,568,986.20 and 287,830.80 is: 431,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,990.80 : 1,568,986.20 = 287,830.80 : x
  2. Step 2: Convert to fraction form
    1,045,990.80/1,568,986.20 = 287,830.80/x
  3. Step 3: Cross multiply
    1,045,990.80x = 1,568,986.20 × 287,830.80
  4. Step 4: Simplify right side
    1,045,990.80x = 451,602,553,134.96
  5. Step 5: Solve for x
    x = 451,602,553,134.96/1,045,990.80
  6. Step 6: Final answer
    x = 431,746.20

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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.