Home / 685,830.98-946,454.38-379,912.08

Finding the Fourth Proportional to 685,830.98, 946,454.38 and 379,912.08

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Solution

The fourth proportional to 685,830.98, 946,454.38 and 379,912.08 is: 524,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,830.98 : 946,454.38 = 379,912.08 : x
  2. Step 2: Convert to fraction form
    685,830.98/946,454.38 = 379,912.08/x
  3. Step 3: Cross multiply
    685,830.98x = 946,454.38 × 379,912.08
  4. Step 4: Simplify right side
    685,830.98x = 359,569,452,130.91
  5. Step 5: Solve for x
    x = 359,569,452,130.91/685,830.98
  6. Step 6: Final answer
    x = 524,282.90

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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.