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Finding the Fourth Proportional to 559,064.98, 771,506.40 and 304,415.56

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Solution

The fourth proportional to 559,064.98, 771,506.40 and 304,415.56 is: 420,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,064.98 : 771,506.40 = 304,415.56 : x
  2. Step 2: Convert to fraction form
    559,064.98/771,506.40 = 304,415.56/x
  3. Step 3: Cross multiply
    559,064.98x = 771,506.40 × 304,415.56
  4. Step 4: Simplify right side
    559,064.98x = 234,858,552,799.58
  5. Step 5: Solve for x
    x = 234,858,552,799.58/559,064.98
  6. Step 6: Final answer
    x = 420,091.69

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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.