Home / 1,129,346.31-1,558,053.41-645,651.57

Finding the Fourth Proportional to 1,129,346.31, 1,558,053.41 and 645,651.57

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Solution

The fourth proportional to 1,129,346.31, 1,558,053.41 and 645,651.57 is: 890,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,346.31 : 1,558,053.41 = 645,651.57 : x
  2. Step 2: Convert to fraction form
    1,129,346.31/1,558,053.41 = 645,651.57/x
  3. Step 3: Cross multiply
    1,129,346.31x = 1,558,053.41 × 645,651.57
  4. Step 4: Simplify right side
    1,129,346.31x = 1,005,959,630,310.35
  5. Step 5: Solve for x
    x = 1,005,959,630,310.35/1,129,346.31
  6. Step 6: Final answer
    x = 890,745.05

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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.