Home / 690,939.40-1,034,068.20-424,868.44

Finding the Fourth Proportional to 690,939.40, 1,034,068.20 and 424,868.44

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Solution

The fourth proportional to 690,939.40, 1,034,068.20 and 424,868.44 is: 635,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,939.40 : 1,034,068.20 = 424,868.44 : x
  2. Step 2: Convert to fraction form
    690,939.40/1,034,068.20 = 424,868.44/x
  3. Step 3: Cross multiply
    690,939.40x = 1,034,068.20 × 424,868.44
  4. Step 4: Simplify right side
    690,939.40x = 439,342,942,987.61
  5. Step 5: Solve for x
    x = 439,342,942,987.61/690,939.40
  6. Step 6: Final answer
    x = 635,863.21

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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.