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Finding the Fourth Proportional to 322,047.20, 483,459.60 and 319,714.40

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Solution

The fourth proportional to 322,047.20, 483,459.60 and 319,714.40 is: 479,957.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,047.20 : 483,459.60 = 319,714.40 : x
  2. Step 2: Convert to fraction form
    322,047.20/483,459.60 = 319,714.40/x
  3. Step 3: Cross multiply
    322,047.20x = 483,459.60 × 319,714.40
  4. Step 4: Simplify right side
    322,047.20x = 154,568,995,938.24
  5. Step 5: Solve for x
    x = 154,568,995,938.24/322,047.20
  6. Step 6: Final answer
    x = 479,957.58

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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.