Home / 768,075.14-1,152,111.42-318,495.98

Finding the Fourth Proportional to 768,075.14, 1,152,111.42 and 318,495.98

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Solution

The fourth proportional to 768,075.14, 1,152,111.42 and 318,495.98 is: 477,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,075.14 : 1,152,111.42 = 318,495.98 : x
  2. Step 2: Convert to fraction form
    768,075.14/1,152,111.42 = 318,495.98/x
  3. Step 3: Cross multiply
    768,075.14x = 1,152,111.42 × 318,495.98
  4. Step 4: Simplify right side
    768,075.14x = 366,942,855,782.09
  5. Step 5: Solve for x
    x = 366,942,855,782.09/768,075.14
  6. Step 6: Final answer
    x = 477,743.44

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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.