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Finding the Fourth Proportional to 626,528.84, 864,601.40 and 340,046.40

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Solution

The fourth proportional to 626,528.84, 864,601.40 and 340,046.40 is: 469,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,528.84 : 864,601.40 = 340,046.40 : x
  2. Step 2: Convert to fraction form
    626,528.84/864,601.40 = 340,046.40/x
  3. Step 3: Cross multiply
    626,528.84x = 864,601.40 × 340,046.40
  4. Step 4: Simplify right side
    626,528.84x = 294,004,593,504.96
  5. Step 5: Solve for x
    x = 294,004,593,504.96/626,528.84
  6. Step 6: Final answer
    x = 469,259.47

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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.