Home / 946,728.20-1,420,104.85-315,642.22

Finding the Fourth Proportional to 946,728.20, 1,420,104.85 and 315,642.22

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Solution

The fourth proportional to 946,728.20, 1,420,104.85 and 315,642.22 is: 473,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,728.20 : 1,420,104.85 = 315,642.22 : x
  2. Step 2: Convert to fraction form
    946,728.20/1,420,104.85 = 315,642.22/x
  3. Step 3: Cross multiply
    946,728.20x = 1,420,104.85 × 315,642.22
  4. Step 4: Simplify right side
    946,728.20x = 448,245,047,486.77
  5. Step 5: Solve for x
    x = 448,245,047,486.77/946,728.20
  6. Step 6: Final answer
    x = 473,467.51

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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.