Home / 685,898.73-946,450.49-395,521.02

Finding the Fourth Proportional to 685,898.73, 946,450.49 and 395,521.02

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Solution

The fourth proportional to 685,898.73, 946,450.49 and 395,521.02 is: 545,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,898.73 : 946,450.49 = 395,521.02 : x
  2. Step 2: Convert to fraction form
    685,898.73/946,450.49 = 395,521.02/x
  3. Step 3: Cross multiply
    685,898.73x = 946,450.49 × 395,521.02
  4. Step 4: Simplify right side
    685,898.73x = 374,341,061,206.70
  5. Step 5: Solve for x
    x = 374,341,061,206.70/685,898.73
  6. Step 6: Final answer
    x = 545,767.25

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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.