Home / 629,900.57-869,225.33-357,930.72

Finding the Fourth Proportional to 629,900.57, 869,225.33 and 357,930.72

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Solution

The fourth proportional to 629,900.57, 869,225.33 and 357,930.72 is: 493,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,900.57 : 869,225.33 = 357,930.72 : x
  2. Step 2: Convert to fraction form
    629,900.57/869,225.33 = 357,930.72/x
  3. Step 3: Cross multiply
    629,900.57x = 869,225.33 × 357,930.72
  4. Step 4: Simplify right side
    629,900.57x = 311,122,446,419.48
  5. Step 5: Solve for x
    x = 311,122,446,419.48/629,900.57
  6. Step 6: Final answer
    x = 493,923.11

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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.