Home / 1,210,339.94-1,670,269.11-666,474.43

Finding the Fourth Proportional to 1,210,339.94, 1,670,269.11 and 666,474.43

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Solution

The fourth proportional to 1,210,339.94, 1,670,269.11 and 666,474.43 is: 919,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,339.94 : 1,670,269.11 = 666,474.43 : x
  2. Step 2: Convert to fraction form
    1,210,339.94/1,670,269.11 = 666,474.43/x
  3. Step 3: Cross multiply
    1,210,339.94x = 1,670,269.11 × 666,474.43
  4. Step 4: Simplify right side
    1,210,339.94x = 1,113,191,653,033.86
  5. Step 5: Solve for x
    x = 1,113,191,653,033.86/1,210,339.94
  6. Step 6: Final answer
    x = 919,734.71

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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.