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Finding the Fourth Proportional to 626,544.62, 864,629.40 and 340,064.70

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Solution

The fourth proportional to 626,544.62, 864,629.40 and 340,064.70 is: 469,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,544.62 : 864,629.40 = 340,064.70 : x
  2. Step 2: Convert to fraction form
    626,544.62/864,629.40 = 340,064.70/x
  3. Step 3: Cross multiply
    626,544.62x = 864,629.40 × 340,064.70
  4. Step 4: Simplify right side
    626,544.62x = 294,029,937,522.18
  5. Step 5: Solve for x
    x = 294,029,937,522.18/626,544.62
  6. Step 6: Final answer
    x = 469,288.11

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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.