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Finding the Fourth Proportional to 669,826.37, 924,293.70 and 379,379.97

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Solution

The fourth proportional to 669,826.37, 924,293.70 and 379,379.97 is: 523,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,826.37 : 924,293.70 = 379,379.97 : x
  2. Step 2: Convert to fraction form
    669,826.37/924,293.70 = 379,379.97/x
  3. Step 3: Cross multiply
    669,826.37x = 924,293.70 × 379,379.97
  4. Step 4: Simplify right side
    669,826.37x = 350,658,510,677.32
  5. Step 5: Solve for x
    x = 350,658,510,677.32/669,826.37
  6. Step 6: Final answer
    x = 523,506.58

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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.