Home / 1,281,654.50-1,768,678.47-722,804.45

Finding the Fourth Proportional to 1,281,654.50, 1,768,678.47 and 722,804.45

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Solution

The fourth proportional to 1,281,654.50, 1,768,678.47 and 722,804.45 is: 997,467.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,654.50 : 1,768,678.47 = 722,804.45 : x
  2. Step 2: Convert to fraction form
    1,281,654.50/1,768,678.47 = 722,804.45/x
  3. Step 3: Cross multiply
    1,281,654.50x = 1,768,678.47 × 722,804.45
  4. Step 4: Simplify right side
    1,281,654.50x = 1,278,408,659,891.80
  5. Step 5: Solve for x
    x = 1,278,408,659,891.80/1,281,654.50
  6. Step 6: Final answer
    x = 997,467.46

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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.