Home / 480,204.12-662,819.70-316,979.76

Finding the Fourth Proportional to 480,204.12, 662,819.70 and 316,979.76

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Solution

The fourth proportional to 480,204.12, 662,819.70 and 316,979.76 is: 437,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,204.12 : 662,819.70 = 316,979.76 : x
  2. Step 2: Convert to fraction form
    480,204.12/662,819.70 = 316,979.76/x
  3. Step 3: Cross multiply
    480,204.12x = 662,819.70 × 316,979.76
  4. Step 4: Simplify right side
    480,204.12x = 210,100,429,429.27
  5. Step 5: Solve for x
    x = 210,100,429,429.27/480,204.12
  6. Step 6: Final answer
    x = 437,523.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.