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Finding the Fourth Proportional to 626,557.97, 864,626.83 and 340,071.95

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Solution

The fourth proportional to 626,557.97, 864,626.83 and 340,071.95 is: 469,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,557.97 : 864,626.83 = 340,071.95 : x
  2. Step 2: Convert to fraction form
    626,557.97/864,626.83 = 340,071.95/x
  3. Step 3: Cross multiply
    626,557.97x = 864,626.83 × 340,071.95
  4. Step 4: Simplify right side
    626,557.97x = 294,035,326,927.11
  5. Step 5: Solve for x
    x = 294,035,326,927.11/626,557.97
  6. Step 6: Final answer
    x = 469,286.71

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Double scale
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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.