Home / 818,006.42-1,227,075.23-285,515.66

Finding the Fourth Proportional to 818,006.42, 1,227,075.23 and 285,515.66

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Solution

The fourth proportional to 818,006.42, 1,227,075.23 and 285,515.66 is: 428,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,006.42 : 1,227,075.23 = 285,515.66 : x
  2. Step 2: Convert to fraction form
    818,006.42/1,227,075.23 = 285,515.66/x
  3. Step 3: Cross multiply
    818,006.42x = 1,227,075.23 × 285,515.66
  4. Step 4: Simplify right side
    818,006.42x = 350,349,188,741.52
  5. Step 5: Solve for x
    x = 350,349,188,741.52/818,006.42
  6. Step 6: Final answer
    x = 428,296.38

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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.