Home / 319,623.04-478,687.68-252,613.60

Finding the Fourth Proportional to 319,623.04, 478,687.68 and 252,613.60

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Solution

The fourth proportional to 319,623.04, 478,687.68 and 252,613.60 is: 378,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,623.04 : 478,687.68 = 252,613.60 : x
  2. Step 2: Convert to fraction form
    319,623.04/478,687.68 = 252,613.60/x
  3. Step 3: Cross multiply
    319,623.04x = 478,687.68 × 252,613.60
  4. Step 4: Simplify right side
    319,623.04x = 120,923,018,120.45
  5. Step 5: Solve for x
    x = 120,923,018,120.45/319,623.04
  6. Step 6: Final answer
    x = 378,330.10

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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.