Home / 1,286,438.20-1,929,697.32-477,024.04

Finding the Fourth Proportional to 1,286,438.20, 1,929,697.32 and 477,024.04

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Solution

The fourth proportional to 1,286,438.20, 1,929,697.32 and 477,024.04 is: 715,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,438.20 : 1,929,697.32 = 477,024.04 : x
  2. Step 2: Convert to fraction form
    1,286,438.20/1,929,697.32 = 477,024.04/x
  3. Step 3: Cross multiply
    1,286,438.20x = 1,929,697.32 × 477,024.04
  4. Step 4: Simplify right side
    1,286,438.20x = 920,512,004,909.99
  5. Step 5: Solve for x
    x = 920,512,004,909.99/1,286,438.20
  6. Step 6: Final answer
    x = 715,550.89

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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.