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Finding the Fourth Proportional to 556,650.56, 768,577.22 and 342,078.32

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Solution

The fourth proportional to 556,650.56, 768,577.22 and 342,078.32 is: 472,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,650.56 : 768,577.22 = 342,078.32 : x
  2. Step 2: Convert to fraction form
    556,650.56/768,577.22 = 342,078.32/x
  3. Step 3: Cross multiply
    556,650.56x = 768,577.22 × 342,078.32
  4. Step 4: Simplify right side
    556,650.56x = 262,913,604,207.87
  5. Step 5: Solve for x
    x = 262,913,604,207.87/556,650.56
  6. Step 6: Final answer
    x = 472,313.55

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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.