Home / 685,917.32-946,565.87-375,821.15

Finding the Fourth Proportional to 685,917.32, 946,565.87 and 375,821.15

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Solution

The fourth proportional to 685,917.32, 946,565.87 and 375,821.15 is: 518,633.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,917.32 : 946,565.87 = 375,821.15 : x
  2. Step 2: Convert to fraction form
    685,917.32/946,565.87 = 375,821.15/x
  3. Step 3: Cross multiply
    685,917.32x = 946,565.87 × 375,821.15
  4. Step 4: Simplify right side
    685,917.32x = 355,739,467,202.22
  5. Step 5: Solve for x
    x = 355,739,467,202.22/685,917.32
  6. Step 6: Final answer
    x = 518,633.16

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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.