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Finding the Fourth Proportional to 603,372.22, 832,415.56 and 388,636.76

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Solution

The fourth proportional to 603,372.22, 832,415.56 and 388,636.76 is: 536,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,372.22 : 832,415.56 = 388,636.76 : x
  2. Step 2: Convert to fraction form
    603,372.22/832,415.56 = 388,636.76/x
  3. Step 3: Cross multiply
    603,372.22x = 832,415.56 × 388,636.76
  4. Step 4: Simplify right side
    603,372.22x = 323,507,286,211.99
  5. Step 5: Solve for x
    x = 323,507,286,211.99/603,372.22
  6. Step 6: Final answer
    x = 536,165.36

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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.