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Finding the Fourth Proportional to 556,427.44, 767,870.82 and 301,778.83

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Solution

The fourth proportional to 556,427.44, 767,870.82 and 301,778.83 is: 416,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,427.44 : 767,870.82 = 301,778.83 : x
  2. Step 2: Convert to fraction form
    556,427.44/767,870.82 = 301,778.83/x
  3. Step 3: Cross multiply
    556,427.44x = 767,870.82 × 301,778.83
  4. Step 4: Simplify right side
    556,427.44x = 231,727,157,650.74
  5. Step 5: Solve for x
    x = 231,727,157,650.74/556,427.44
  6. Step 6: Final answer
    x = 416,455.30

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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.