Home / 685,628.46-946,171.35-379,714.14

Finding the Fourth Proportional to 685,628.46, 946,171.35 and 379,714.14

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Solution

The fourth proportional to 685,628.46, 946,171.35 and 379,714.14 is: 524,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,628.46 : 946,171.35 = 379,714.14 : x
  2. Step 2: Convert to fraction form
    685,628.46/946,171.35 = 379,714.14/x
  3. Step 3: Cross multiply
    685,628.46x = 946,171.35 × 379,714.14
  4. Step 4: Simplify right side
    685,628.46x = 359,274,640,457.89
  5. Step 5: Solve for x
    x = 359,274,640,457.89/685,628.46
  6. Step 6: Final answer
    x = 524,007.77

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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.