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Finding the Fourth Proportional to 1,557,930, 2,336,895 and 375,978

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Solution

The fourth proportional to 1,557,930, 2,336,895 and 375,978 is: 563,967

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,930 : 2,336,895 = 375,978 : x
  2. Step 2: Convert to fraction form
    1,557,930/2,336,895 = 375,978/x
  3. Step 3: Cross multiply
    1,557,930x = 2,336,895 × 375,978
  4. Step 4: Simplify right side
    1,557,930x = 878,621,108,310
  5. Step 5: Solve for x
    x = 878,621,108,310/1,557,930
  6. Step 6: Final answer
    x = 563,967

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.