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Finding the Fourth Proportional to 626,522.12, 864,608.82 and 340,045.64

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Solution

The fourth proportional to 626,522.12, 864,608.82 and 340,045.64 is: 469,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,522.12 : 864,608.82 = 340,045.64 : x
  2. Step 2: Convert to fraction form
    626,522.12/864,608.82 = 340,045.64/x
  3. Step 3: Cross multiply
    626,522.12x = 864,608.82 × 340,045.64
  4. Step 4: Simplify right side
    626,522.12x = 294,006,459,546.55
  5. Step 5: Solve for x
    x = 294,006,459,546.55/626,522.12
  6. Step 6: Final answer
    x = 469,267.48

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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.