Home / 920,925.11-1,381,594.76-281,175.33

Finding the Fourth Proportional to 920,925.11, 1,381,594.76 and 281,175.33

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Solution

The fourth proportional to 920,925.11, 1,381,594.76 and 281,175.33 is: 421,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,925.11 : 1,381,594.76 = 281,175.33 : x
  2. Step 2: Convert to fraction form
    920,925.11/1,381,594.76 = 281,175.33/x
  3. Step 3: Cross multiply
    920,925.11x = 1,381,594.76 × 281,175.33
  4. Step 4: Simplify right side
    920,925.11x = 388,470,367,398.78
  5. Step 5: Solve for x
    x = 388,470,367,398.78/920,925.11
  6. Step 6: Final answer
    x = 421,826.23

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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.