Home / 1,330,285.55-1,994,910.66-431,509.95

Finding the Fourth Proportional to 1,330,285.55, 1,994,910.66 and 431,509.95

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Solution

The fourth proportional to 1,330,285.55, 1,994,910.66 and 431,509.95 is: 647,097.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,285.55 : 1,994,910.66 = 431,509.95 : x
  2. Step 2: Convert to fraction form
    1,330,285.55/1,994,910.66 = 431,509.95/x
  3. Step 3: Cross multiply
    1,330,285.55x = 1,994,910.66 × 431,509.95
  4. Step 4: Simplify right side
    1,330,285.55x = 860,823,799,151.07
  5. Step 5: Solve for x
    x = 860,823,799,151.07/1,330,285.55
  6. Step 6: Final answer
    x = 647,097.01

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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.