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Finding the Fourth Proportional to 629,924.70, 869,295.30 and 343,444.70

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Solution

The fourth proportional to 629,924.70, 869,295.30 and 343,444.70 is: 473,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,924.70 : 869,295.30 = 343,444.70 : x
  2. Step 2: Convert to fraction form
    629,924.70/869,295.30 = 343,444.70/x
  3. Step 3: Cross multiply
    629,924.70x = 869,295.30 × 343,444.70
  4. Step 4: Simplify right side
    629,924.70x = 298,554,863,519.91
  5. Step 5: Solve for x
    x = 298,554,863,519.91/629,924.70
  6. Step 6: Final answer
    x = 473,953.26

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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.