Home / 629,290.80-868,417.04-342,811.08

Finding the Fourth Proportional to 629,290.80, 868,417.04 and 342,811.08

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Solution

The fourth proportional to 629,290.80, 868,417.04 and 342,811.08 is: 473,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,290.80 : 868,417.04 = 342,811.08 : x
  2. Step 2: Convert to fraction form
    629,290.80/868,417.04 = 342,811.08/x
  3. Step 3: Cross multiply
    629,290.80x = 868,417.04 × 342,811.08
  4. Step 4: Simplify right side
    629,290.80x = 297,702,983,372.80
  5. Step 5: Solve for x
    x = 297,702,983,372.80/629,290.80
  6. Step 6: Final answer
    x = 473,076.97

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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.