Home / 629,450.74-868,642.14-342,970.87

Finding the Fourth Proportional to 629,450.74, 868,642.14 and 342,970.87

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Solution

The fourth proportional to 629,450.74, 868,642.14 and 342,970.87 is: 473,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,450.74 : 868,642.14 = 342,970.87 : x
  2. Step 2: Convert to fraction form
    629,450.74/868,642.14 = 342,970.87/x
  3. Step 3: Cross multiply
    629,450.74x = 868,642.14 × 342,970.87
  4. Step 4: Simplify right side
    629,450.74x = 297,918,950,474.46
  5. Step 5: Solve for x
    x = 297,918,950,474.46/629,450.74
  6. Step 6: Final answer
    x = 473,299.87

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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.