Home / 682,420.64-941,435.96-395,774.72

Finding the Fourth Proportional to 682,420.64, 941,435.96 and 395,774.72

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Solution

The fourth proportional to 682,420.64, 941,435.96 and 395,774.72 is: 545,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,420.64 : 941,435.96 = 395,774.72 : x
  2. Step 2: Convert to fraction form
    682,420.64/941,435.96 = 395,774.72/x
  3. Step 3: Cross multiply
    682,420.64x = 941,435.96 × 395,774.72
  4. Step 4: Simplify right side
    682,420.64x = 372,596,553,466.93
  5. Step 5: Solve for x
    x = 372,596,553,466.93/682,420.64
  6. Step 6: Final answer
    x = 545,992.50

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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.