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Finding the Fourth Proportional to 434,674.80, 651,623.40 and 284,986.80

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Solution

The fourth proportional to 434,674.80, 651,623.40 and 284,986.80 is: 427,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,674.80 : 651,623.40 = 284,986.80 : x
  2. Step 2: Convert to fraction form
    434,674.80/651,623.40 = 284,986.80/x
  3. Step 3: Cross multiply
    434,674.80x = 651,623.40 × 284,986.80
  4. Step 4: Simplify right side
    434,674.80x = 185,704,067,571.12
  5. Step 5: Solve for x
    x = 185,704,067,571.12/434,674.80
  6. Step 6: Final answer
    x = 427,225.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.