Home / 321,946.20-483,308.10-319,613.40

Finding the Fourth Proportional to 321,946.20, 483,308.10 and 319,613.40

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Solution

The fourth proportional to 321,946.20, 483,308.10 and 319,613.40 is: 479,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,946.20 : 483,308.10 = 319,613.40 : x
  2. Step 2: Convert to fraction form
    321,946.20/483,308.10 = 319,613.40/x
  3. Step 3: Cross multiply
    321,946.20x = 483,308.10 × 319,613.40
  4. Step 4: Simplify right side
    321,946.20x = 154,471,745,088.54
  5. Step 5: Solve for x
    x = 154,471,745,088.54/321,946.20
  6. Step 6: Final answer
    x = 479,806.08

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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.