Home / 1,202,656.40-1,659,692.64-686,399.96

Finding the Fourth Proportional to 1,202,656.40, 1,659,692.64 and 686,399.96

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Solution

The fourth proportional to 1,202,656.40, 1,659,692.64 and 686,399.96 is: 947,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,656.40 : 1,659,692.64 = 686,399.96 : x
  2. Step 2: Convert to fraction form
    1,202,656.40/1,659,692.64 = 686,399.96/x
  3. Step 3: Cross multiply
    1,202,656.40x = 1,659,692.64 × 686,399.96
  4. Step 4: Simplify right side
    1,202,656.40x = 1,139,212,961,708.29
  5. Step 5: Solve for x
    x = 1,139,212,961,708.29/1,202,656.40
  6. Step 6: Final answer
    x = 947,247.25

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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.