Home / 920,794.60-1,381,272.90-281,242.72

Finding the Fourth Proportional to 920,794.60, 1,381,272.90 and 281,242.72

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Solution

The fourth proportional to 920,794.60, 1,381,272.90 and 281,242.72 is: 421,888.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,794.60 : 1,381,272.90 = 281,242.72 : x
  2. Step 2: Convert to fraction form
    920,794.60/1,381,272.90 = 281,242.72/x
  3. Step 3: Cross multiply
    920,794.60x = 1,381,272.90 × 281,242.72
  4. Step 4: Simplify right side
    920,794.60x = 388,472,947,458.29
  5. Step 5: Solve for x
    x = 388,472,947,458.29/920,794.60
  6. Step 6: Final answer
    x = 421,888.82

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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.