Home / 629,315.80-868,452.40-342,835.20

Finding the Fourth Proportional to 629,315.80, 868,452.40 and 342,835.20

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Solution

The fourth proportional to 629,315.80, 868,452.40 and 342,835.20 is: 473,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,315.80 : 868,452.40 = 342,835.20 : x
  2. Step 2: Convert to fraction form
    629,315.80/868,452.40 = 342,835.20/x
  3. Step 3: Cross multiply
    629,315.80x = 868,452.40 × 342,835.20
  4. Step 4: Simplify right side
    629,315.80x = 297,736,052,244.48
  5. Step 5: Solve for x
    x = 297,736,052,244.48/629,315.80
  6. Step 6: Final answer
    x = 473,110.72

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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.