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Finding the Fourth Proportional to 629,935.31, 869,314.86 and 343,460.18

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Solution

The fourth proportional to 629,935.31, 869,314.86 and 343,460.18 is: 473,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,935.31 : 869,314.86 = 343,460.18 : x
  2. Step 2: Convert to fraction form
    629,935.31/869,314.86 = 343,460.18/x
  3. Step 3: Cross multiply
    629,935.31x = 869,314.86 × 343,460.18
  4. Step 4: Simplify right side
    629,935.31x = 298,575,033,945.70
  5. Step 5: Solve for x
    x = 298,575,033,945.70/629,935.31
  6. Step 6: Final answer
    x = 473,977.30

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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.