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Finding the Fourth Proportional to 579,222.40, 869,092.80 and 263,516.80

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Solution

The fourth proportional to 579,222.40, 869,092.80 and 263,516.80 is: 395,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,222.40 : 869,092.80 = 263,516.80 : x
  2. Step 2: Convert to fraction form
    579,222.40/869,092.80 = 263,516.80/x
  3. Step 3: Cross multiply
    579,222.40x = 869,092.80 × 263,516.80
  4. Step 4: Simplify right side
    579,222.40x = 229,020,553,559.04
  5. Step 5: Solve for x
    x = 229,020,553,559.04/579,222.40
  6. Step 6: Final answer
    x = 395,393.12

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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.