Home / 920,160.89-1,380,523.04-471,199.65

Finding the Fourth Proportional to 920,160.89, 1,380,523.04 and 471,199.65

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Solution

The fourth proportional to 920,160.89, 1,380,523.04 and 471,199.65 is: 706,943.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,160.89 : 1,380,523.04 = 471,199.65 : x
  2. Step 2: Convert to fraction form
    920,160.89/1,380,523.04 = 471,199.65/x
  3. Step 3: Cross multiply
    920,160.89x = 1,380,523.04 × 471,199.65
  4. Step 4: Simplify right side
    920,160.89x = 650,501,970,908.94
  5. Step 5: Solve for x
    x = 650,501,970,908.94/920,160.89
  6. Step 6: Final answer
    x = 706,943.73

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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.