Home / 877,940.73-1,315,894.55-403,630.65

Finding the Fourth Proportional to 877,940.73, 1,315,894.55 and 403,630.65

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Solution

The fourth proportional to 877,940.73, 1,315,894.55 and 403,630.65 is: 604,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,940.73 : 1,315,894.55 = 403,630.65 : x
  2. Step 2: Convert to fraction form
    877,940.73/1,315,894.55 = 403,630.65/x
  3. Step 3: Cross multiply
    877,940.73x = 1,315,894.55 × 403,630.65
  4. Step 4: Simplify right side
    877,940.73x = 531,135,370,529.80
  5. Step 5: Solve for x
    x = 531,135,370,529.80/877,940.73
  6. Step 6: Final answer
    x = 604,978.62

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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.