Home / 809,202.80-1,212,200.40-709,475.60

Finding the Fourth Proportional to 809,202.80, 1,212,200.40 and 709,475.60

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Solution

The fourth proportional to 809,202.80, 1,212,200.40 and 709,475.60 is: 1,062,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,202.80 : 1,212,200.40 = 709,475.60 : x
  2. Step 2: Convert to fraction form
    809,202.80/1,212,200.40 = 709,475.60/x
  3. Step 3: Cross multiply
    809,202.80x = 1,212,200.40 × 709,475.60
  4. Step 4: Simplify right side
    809,202.80x = 860,026,606,110.24
  5. Step 5: Solve for x
    x = 860,026,606,110.24/809,202.80
  6. Step 6: Final answer
    x = 1,062,807.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.