Home / 717,515.80-1,075,535.16-318,344.56

Finding the Fourth Proportional to 717,515.80, 1,075,535.16 and 318,344.56

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Solution

The fourth proportional to 717,515.80, 1,075,535.16 and 318,344.56 is: 477,189.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,515.80 : 1,075,535.16 = 318,344.56 : x
  2. Step 2: Convert to fraction form
    717,515.80/1,075,535.16 = 318,344.56/x
  3. Step 3: Cross multiply
    717,515.80x = 1,075,535.16 × 318,344.56
  4. Step 4: Simplify right side
    717,515.80x = 342,390,767,274.73
  5. Step 5: Solve for x
    x = 342,390,767,274.73/717,515.80
  6. Step 6: Final answer
    x = 477,189.17

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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.