Home / 690,949.40-1,034,083.20-424,878.44

Finding the Fourth Proportional to 690,949.40, 1,034,083.20 and 424,878.44

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Solution

The fourth proportional to 690,949.40, 1,034,083.20 and 424,878.44 is: 635,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,949.40 : 1,034,083.20 = 424,878.44 : x
  2. Step 2: Convert to fraction form
    690,949.40/1,034,083.20 = 424,878.44/x
  3. Step 3: Cross multiply
    690,949.40x = 1,034,083.20 × 424,878.44
  4. Step 4: Simplify right side
    690,949.40x = 439,359,656,846.21
  5. Step 5: Solve for x
    x = 439,359,656,846.21/690,949.40
  6. Step 6: Final answer
    x = 635,878.19

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1.5x scale

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.