Home / 818,006.79-1,227,075.80-285,516.03

Finding the Fourth Proportional to 818,006.79, 1,227,075.80 and 285,516.03

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Solution

The fourth proportional to 818,006.79, 1,227,075.80 and 285,516.03 is: 428,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,006.79 : 1,227,075.80 = 285,516.03 : x
  2. Step 2: Convert to fraction form
    818,006.79/1,227,075.80 = 285,516.03/x
  3. Step 3: Cross multiply
    818,006.79x = 1,227,075.80 × 285,516.03
  4. Step 4: Simplify right side
    818,006.79x = 350,349,809,497.49
  5. Step 5: Solve for x
    x = 350,349,809,497.49/818,006.79
  6. Step 6: Final answer
    x = 428,296.95

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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.