Home / 905,895.45-1,359,007.20-455,482.80

Finding the Fourth Proportional to 905,895.45, 1,359,007.20 and 455,482.80

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Solution

The fourth proportional to 905,895.45, 1,359,007.20 and 455,482.80 is: 683,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,895.45 : 1,359,007.20 = 455,482.80 : x
  2. Step 2: Convert to fraction form
    905,895.45/1,359,007.20 = 455,482.80/x
  3. Step 3: Cross multiply
    905,895.45x = 1,359,007.20 × 455,482.80
  4. Step 4: Simplify right side
    905,895.45x = 619,004,404,676.16
  5. Step 5: Solve for x
    x = 619,004,404,676.16/905,895.45
  6. Step 6: Final answer
    x = 683,306.67

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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.