Home / 629,979.93-869,376.24-343,504.80

Finding the Fourth Proportional to 629,979.93, 869,376.24 and 343,504.80

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Solution

The fourth proportional to 629,979.93, 869,376.24 and 343,504.80 is: 474,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,979.93 : 869,376.24 = 343,504.80 : x
  2. Step 2: Convert to fraction form
    629,979.93/869,376.24 = 343,504.80/x
  3. Step 3: Cross multiply
    629,979.93x = 869,376.24 × 343,504.80
  4. Step 4: Simplify right side
    629,979.93x = 298,634,911,445.95
  5. Step 5: Solve for x
    x = 298,634,911,445.95/629,979.93
  6. Step 6: Final answer
    x = 474,038.77

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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.