Home / 1,212,197.20-1,817,129.40-942,175.60

Finding the Fourth Proportional to 1,212,197.20, 1,817,129.40 and 942,175.60

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Solution

The fourth proportional to 1,212,197.20, 1,817,129.40 and 942,175.60 is: 1,412,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,197.20 : 1,817,129.40 = 942,175.60 : x
  2. Step 2: Convert to fraction form
    1,212,197.20/1,817,129.40 = 942,175.60/x
  3. Step 3: Cross multiply
    1,212,197.20x = 1,817,129.40 × 942,175.60
  4. Step 4: Simplify right side
    1,212,197.20x = 1,712,054,982,722.64
  5. Step 5: Solve for x
    x = 1,712,054,982,722.64/1,212,197.20
  6. Step 6: Final answer
    x = 1,412,356.82

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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.