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Finding the Fourth Proportional to 1,181,346, 1,630,257.48 and 644,802

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Solution

The fourth proportional to 1,181,346, 1,630,257.48 and 644,802 is: 889,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,346 : 1,630,257.48 = 644,802 : x
  2. Step 2: Convert to fraction form
    1,181,346/1,630,257.48 = 644,802/x
  3. Step 3: Cross multiply
    1,181,346x = 1,630,257.48 × 644,802
  4. Step 4: Simplify right side
    1,181,346x = 1,051,193,283,618.96
  5. Step 5: Solve for x
    x = 1,051,193,283,618.96/1,181,346
  6. Step 6: Final answer
    x = 889,826.76

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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.