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Finding the Fourth Proportional to 626,492.56, 864,552.54 and 340,012.84

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Solution

The fourth proportional to 626,492.56, 864,552.54 and 340,012.84 is: 469,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,492.56 : 864,552.54 = 340,012.84 : x
  2. Step 2: Convert to fraction form
    626,492.56/864,552.54 = 340,012.84/x
  3. Step 3: Cross multiply
    626,492.56x = 864,552.54 × 340,012.84
  4. Step 4: Simplify right side
    626,492.56x = 293,958,964,454.61
  5. Step 5: Solve for x
    x = 293,958,964,454.61/626,492.56
  6. Step 6: Final answer
    x = 469,213.82

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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.