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Finding the Fourth Proportional to 562,284.22, 776,076.78 and 388,099.04

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Solution

The fourth proportional to 562,284.22, 776,076.78 and 388,099.04 is: 535,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,284.22 : 776,076.78 = 388,099.04 : x
  2. Step 2: Convert to fraction form
    562,284.22/776,076.78 = 388,099.04/x
  3. Step 3: Cross multiply
    562,284.22x = 776,076.78 × 388,099.04
  4. Step 4: Simplify right side
    562,284.22x = 301,194,653,284.29
  5. Step 5: Solve for x
    x = 301,194,653,284.29/562,284.22
  6. Step 6: Final answer
    x = 535,662.65

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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.