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Finding the Fourth Proportional to 629,901.77, 869,269.53 and 343,423.94

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Solution

The fourth proportional to 629,901.77, 869,269.53 and 343,423.94 is: 473,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,901.77 : 869,269.53 = 343,423.94 : x
  2. Step 2: Convert to fraction form
    629,901.77/869,269.53 = 343,423.94/x
  3. Step 3: Cross multiply
    629,901.77x = 869,269.53 × 343,423.94
  4. Step 4: Simplify right side
    629,901.77x = 298,527,966,914.55
  5. Step 5: Solve for x
    x = 298,527,966,914.55/629,901.77
  6. Step 6: Final answer
    x = 473,927.81

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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.