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Finding the Fourth Proportional to 629,492.36, 868,672.22 and 357,559.38

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Solution

The fourth proportional to 629,492.36, 868,672.22 and 357,559.38 is: 493,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,492.36 : 868,672.22 = 357,559.38 : x
  2. Step 2: Convert to fraction form
    629,492.36/868,672.22 = 357,559.38/x
  3. Step 3: Cross multiply
    629,492.36x = 868,672.22 × 357,559.38
  4. Step 4: Simplify right side
    629,492.36x = 310,601,898,618.63
  5. Step 5: Solve for x
    x = 310,601,898,618.63/629,492.36
  6. Step 6: Final answer
    x = 493,416.47

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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.