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Finding the Fourth Proportional to 629,535.04, 868,685.12 and 384,396.48

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Solution

The fourth proportional to 629,535.04, 868,685.12 and 384,396.48 is: 530,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,535.04 : 868,685.12 = 384,396.48 : x
  2. Step 2: Convert to fraction form
    629,535.04/868,685.12 = 384,396.48/x
  3. Step 3: Cross multiply
    629,535.04x = 868,685.12 × 384,396.48
  4. Step 4: Simplify right side
    629,535.04x = 333,919,502,356.38
  5. Step 5: Solve for x
    x = 333,919,502,356.38/629,535.04
  6. Step 6: Final answer
    x = 530,422.42

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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.