Home / 905,099.76-1,355,582.52-432,118.80

Finding the Fourth Proportional to 905,099.76, 1,355,582.52 and 432,118.80

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Solution

The fourth proportional to 905,099.76, 1,355,582.52 and 432,118.80 is: 647,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,099.76 : 1,355,582.52 = 432,118.80 : x
  2. Step 2: Convert to fraction form
    905,099.76/1,355,582.52 = 432,118.80/x
  3. Step 3: Cross multiply
    905,099.76x = 1,355,582.52 × 432,118.80
  4. Step 4: Simplify right side
    905,099.76x = 585,772,691,843.38
  5. Step 5: Solve for x
    x = 585,772,691,843.38/905,099.76
  6. Step 6: Final answer
    x = 647,191.30

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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.