Home / 629,769.80-869,075.25-343,283.60

Finding the Fourth Proportional to 629,769.80, 869,075.25 and 343,283.60

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Solution

The fourth proportional to 629,769.80, 869,075.25 and 343,283.60 is: 473,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,769.80 : 869,075.25 = 343,283.60 : x
  2. Step 2: Convert to fraction form
    629,769.80/869,075.25 = 343,283.60/x
  3. Step 3: Cross multiply
    629,769.80x = 869,075.25 × 343,283.60
  4. Step 4: Simplify right side
    629,769.80x = 298,339,280,490.90
  5. Step 5: Solve for x
    x = 298,339,280,490.90/629,769.80
  6. Step 6: Final answer
    x = 473,727.51

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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.