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Finding the Fourth Proportional to 484,706.20, 727,059.30 and 384,322.90

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Solution

The fourth proportional to 484,706.20, 727,059.30 and 384,322.90 is: 576,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,706.20 : 727,059.30 = 384,322.90 : x
  2. Step 2: Convert to fraction form
    484,706.20/727,059.30 = 384,322.90/x
  3. Step 3: Cross multiply
    484,706.20x = 727,059.30 × 384,322.90
  4. Step 4: Simplify right side
    484,706.20x = 279,425,538,647.97
  5. Step 5: Solve for x
    x = 279,425,538,647.97/484,706.20
  6. Step 6: Final answer
    x = 576,484.35

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Similar ratio
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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.