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Finding the Fourth Proportional to 624,700, 862,019.85 and 352,751.41

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Solution

The fourth proportional to 624,700, 862,019.85 and 352,751.41 is: 486,759.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,700 : 862,019.85 = 352,751.41 : x
  2. Step 2: Convert to fraction form
    624,700/862,019.85 = 352,751.41/x
  3. Step 3: Cross multiply
    624,700x = 862,019.85 × 352,751.41
  4. Step 4: Simplify right side
    624,700x = 304,078,717,535.49
  5. Step 5: Solve for x
    x = 304,078,717,535.49/624,700
  6. Step 6: Final answer
    x = 486,759.59

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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.