Home / 685,836.48-946,461.96-379,917.57

Finding the Fourth Proportional to 685,836.48, 946,461.96 and 379,917.57

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Solution

The fourth proportional to 685,836.48, 946,461.96 and 379,917.57 is: 524,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,836.48 : 946,461.96 = 379,917.57 : x
  2. Step 2: Convert to fraction form
    685,836.48/946,461.96 = 379,917.57/x
  3. Step 3: Cross multiply
    685,836.48x = 946,461.96 × 379,917.57
  4. Step 4: Simplify right side
    685,836.48x = 359,577,527,940.64
  5. Step 5: Solve for x
    x = 359,577,527,940.64/685,836.48
  6. Step 6: Final answer
    x = 524,290.47

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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.