Home / 685,886.54-946,505.86-375,786.95

Finding the Fourth Proportional to 685,886.54, 946,505.86 and 375,786.95

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Solution

The fourth proportional to 685,886.54, 946,505.86 and 375,786.95 is: 518,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,886.54 : 946,505.86 = 375,786.95 : x
  2. Step 2: Convert to fraction form
    685,886.54/946,505.86 = 375,786.95/x
  3. Step 3: Cross multiply
    685,886.54x = 946,505.86 × 375,786.95
  4. Step 4: Simplify right side
    685,886.54x = 355,684,544,614.53
  5. Step 5: Solve for x
    x = 355,684,544,614.53/685,886.54
  6. Step 6: Final answer
    x = 518,576.36

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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.