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Finding the Fourth Proportional to 482,293.71, 665,429.58 and 380,002.05

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Solution

The fourth proportional to 482,293.71, 665,429.58 and 380,002.05 is: 524,295.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,293.71 : 665,429.58 = 380,002.05 : x
  2. Step 2: Convert to fraction form
    482,293.71/665,429.58 = 380,002.05/x
  3. Step 3: Cross multiply
    482,293.71x = 665,429.58 × 380,002.05
  4. Step 4: Simplify right side
    482,293.71x = 252,864,604,530.64
  5. Step 5: Solve for x
    x = 252,864,604,530.64/482,293.71
  6. Step 6: Final answer
    x = 524,295.88

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1.5x scale

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.