Home / 920,522.29-1,380,992.56-280,883.22

Finding the Fourth Proportional to 920,522.29, 1,380,992.56 and 280,883.22

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Solution

The fourth proportional to 920,522.29, 1,380,992.56 and 280,883.22 is: 421,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,522.29 : 1,380,992.56 = 280,883.22 : x
  2. Step 2: Convert to fraction form
    920,522.29/1,380,992.56 = 280,883.22/x
  3. Step 3: Cross multiply
    920,522.29x = 1,380,992.56 × 280,883.22
  4. Step 4: Simplify right side
    920,522.29x = 387,897,637,048.84
  5. Step 5: Solve for x
    x = 387,897,637,048.84/920,522.29
  6. Step 6: Final answer
    x = 421,388.64

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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.