Home / 1,218,638.70-1,681,200.36-734,928.84

Finding the Fourth Proportional to 1,218,638.70, 1,681,200.36 and 734,928.84

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Solution

The fourth proportional to 1,218,638.70, 1,681,200.36 and 734,928.84 is: 1,013,887.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,638.70 : 1,681,200.36 = 734,928.84 : x
  2. Step 2: Convert to fraction form
    1,218,638.70/1,681,200.36 = 734,928.84/x
  3. Step 3: Cross multiply
    1,218,638.70x = 1,681,200.36 × 734,928.84
  4. Step 4: Simplify right side
    1,218,638.70x = 1,235,562,630,382.38
  5. Step 5: Solve for x
    x = 1,235,562,630,382.38/1,218,638.70
  6. Step 6: Final answer
    x = 1,013,887.57

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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.