Home / 698,821.20-1,049,009.40-383,893.20

Finding the Fourth Proportional to 698,821.20, 1,049,009.40 and 383,893.20

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Solution

The fourth proportional to 698,821.20, 1,049,009.40 and 383,893.20 is: 576,266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,821.20 : 1,049,009.40 = 383,893.20 : x
  2. Step 2: Convert to fraction form
    698,821.20/1,049,009.40 = 383,893.20/x
  3. Step 3: Cross multiply
    698,821.20x = 1,049,009.40 × 383,893.20
  4. Step 4: Simplify right side
    698,821.20x = 402,707,575,396.08
  5. Step 5: Solve for x
    x = 402,707,575,396.08/698,821.20
  6. Step 6: Final answer
    x = 576,266.97

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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.