Home / 697,635.94-962,747.69-391,778.52

Finding the Fourth Proportional to 697,635.94, 962,747.69 and 391,778.52

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Solution

The fourth proportional to 697,635.94, 962,747.69 and 391,778.52 is: 540,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,635.94 : 962,747.69 = 391,778.52 : x
  2. Step 2: Convert to fraction form
    697,635.94/962,747.69 = 391,778.52/x
  3. Step 3: Cross multiply
    697,635.94x = 962,747.69 × 391,778.52
  4. Step 4: Simplify right side
    697,635.94x = 377,183,866,101.07
  5. Step 5: Solve for x
    x = 377,183,866,101.07/697,635.94
  6. Step 6: Final answer
    x = 540,660.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.