Home / 758,410.70-1,137,771.77-309,133.40

Finding the Fourth Proportional to 758,410.70, 1,137,771.77 and 309,133.40

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Solution

The fourth proportional to 758,410.70, 1,137,771.77 and 309,133.40 is: 463,763.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,410.70 : 1,137,771.77 = 309,133.40 : x
  2. Step 2: Convert to fraction form
    758,410.70/1,137,771.77 = 309,133.40/x
  3. Step 3: Cross multiply
    758,410.70x = 1,137,771.77 × 309,133.40
  4. Step 4: Simplify right side
    758,410.70x = 351,723,248,449.59
  5. Step 5: Solve for x
    x = 351,723,248,449.59/758,410.70
  6. Step 6: Final answer
    x = 463,763.57

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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.