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Finding the Fourth Proportional to 626,482.70, 864,546.12 and 340,002.78

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Solution

The fourth proportional to 626,482.70, 864,546.12 and 340,002.78 is: 469,203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,482.70 : 864,546.12 = 340,002.78 : x
  2. Step 2: Convert to fraction form
    626,482.70/864,546.12 = 340,002.78/x
  3. Step 3: Cross multiply
    626,482.70x = 864,546.12 × 340,002.78
  4. Step 4: Simplify right side
    626,482.70x = 293,948,084,238.21
  5. Step 5: Solve for x
    x = 293,948,084,238.21/626,482.70
  6. Step 6: Final answer
    x = 469,203.84

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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.