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Finding the Fourth Proportional to 527,071.20, 790,606.80 and 133,087.20

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Solution

The fourth proportional to 527,071.20, 790,606.80 and 133,087.20 is: 199,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,071.20 : 790,606.80 = 133,087.20 : x
  2. Step 2: Convert to fraction form
    527,071.20/790,606.80 = 133,087.20/x
  3. Step 3: Cross multiply
    527,071.20x = 790,606.80 × 133,087.20
  4. Step 4: Simplify right side
    527,071.20x = 105,219,645,312.96
  5. Step 5: Solve for x
    x = 105,219,645,312.96/527,071.20
  6. Step 6: Final answer
    x = 199,630.80

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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.