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Finding the Fourth Proportional to 629,175.84, 868,004.88 and 357,184.80

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Solution

The fourth proportional to 629,175.84, 868,004.88 and 357,184.80 is: 492,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,175.84 : 868,004.88 = 357,184.80 : x
  2. Step 2: Convert to fraction form
    629,175.84/868,004.88 = 357,184.80/x
  3. Step 3: Cross multiply
    629,175.84x = 868,004.88 × 357,184.80
  4. Step 4: Simplify right side
    629,175.84x = 310,038,149,461.82
  5. Step 5: Solve for x
    x = 310,038,149,461.82/629,175.84
  6. Step 6: Final answer
    x = 492,768.68

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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.