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Finding the Fourth Proportional to 624,969.47, 862,455.15 and 349,326.96

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Solution

The fourth proportional to 624,969.47, 862,455.15 and 349,326.96 is: 482,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,969.47 : 862,455.15 = 349,326.96 : x
  2. Step 2: Convert to fraction form
    624,969.47/862,455.15 = 349,326.96/x
  3. Step 3: Cross multiply
    624,969.47x = 862,455.15 × 349,326.96
  4. Step 4: Simplify right side
    624,969.47x = 301,278,835,685.84
  5. Step 5: Solve for x
    x = 301,278,835,685.84/624,969.47
  6. Step 6: Final answer
    x = 482,069.69

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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.