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Finding the Fourth Proportional to 380,878.02, 524,415.06 and 323,397.54

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Solution

The fourth proportional to 380,878.02, 524,415.06 and 323,397.54 is: 445,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,878.02 : 524,415.06 = 323,397.54 : x
  2. Step 2: Convert to fraction form
    380,878.02/524,415.06 = 323,397.54/x
  3. Step 3: Cross multiply
    380,878.02x = 524,415.06 × 323,397.54
  4. Step 4: Simplify right side
    380,878.02x = 169,594,540,342.95
  5. Step 5: Solve for x
    x = 169,594,540,342.95/380,878.02
  6. Step 6: Final answer
    x = 445,272.58

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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.