Home / 920,587.20-1,380,958.74-281,034.24

Finding the Fourth Proportional to 920,587.20, 1,380,958.74 and 281,034.24

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Solution

The fourth proportional to 920,587.20, 1,380,958.74 and 281,034.24 is: 421,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,587.20 : 1,380,958.74 = 281,034.24 : x
  2. Step 2: Convert to fraction form
    920,587.20/1,380,958.74 = 281,034.24/x
  3. Step 3: Cross multiply
    920,587.20x = 1,380,958.74 × 281,034.24
  4. Step 4: Simplify right side
    920,587.20x = 388,096,689,967.26
  5. Step 5: Solve for x
    x = 388,096,689,967.26/920,587.20
  6. Step 6: Final answer
    x = 421,575.15

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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.