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Finding the Fourth Proportional to 654,912.73, 903,448.75 and 382,802.85

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Solution

The fourth proportional to 654,912.73, 903,448.75 and 382,802.85 is: 528,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,912.73 : 903,448.75 = 382,802.85 : x
  2. Step 2: Convert to fraction form
    654,912.73/903,448.75 = 382,802.85/x
  3. Step 3: Cross multiply
    654,912.73x = 903,448.75 × 382,802.85
  4. Step 4: Simplify right side
    654,912.73x = 345,842,756,328.94
  5. Step 5: Solve for x
    x = 345,842,756,328.94/654,912.73
  6. Step 6: Final answer
    x = 528,074.57

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1.5x scale

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.