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Finding the Fourth Proportional to 626,534.46, 864,618.39 and 340,054.47

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Solution

The fourth proportional to 626,534.46, 864,618.39 and 340,054.47 is: 469,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,534.46 : 864,618.39 = 340,054.47 : x
  2. Step 2: Convert to fraction form
    626,534.46/864,618.39 = 340,054.47/x
  3. Step 3: Cross multiply
    626,534.46x = 864,618.39 × 340,054.47
  4. Step 4: Simplify right side
    626,534.46x = 294,017,348,363.70
  5. Step 5: Solve for x
    x = 294,017,348,363.70/626,534.46
  6. Step 6: Final answer
    x = 469,275.62

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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.