Home / 1,359,965.60-2,039,948.40-1,212,999.20

Finding the Fourth Proportional to 1,359,965.60, 2,039,948.40 and 1,212,999.20

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Solution

The fourth proportional to 1,359,965.60, 2,039,948.40 and 1,212,999.20 is: 1,819,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,965.60 : 2,039,948.40 = 1,212,999.20 : x
  2. Step 2: Convert to fraction form
    1,359,965.60/2,039,948.40 = 1,212,999.20/x
  3. Step 3: Cross multiply
    1,359,965.60x = 2,039,948.40 × 1,212,999.20
  4. Step 4: Simplify right side
    1,359,965.60x = 2,474,455,777,241.28
  5. Step 5: Solve for x
    x = 2,474,455,777,241.28/1,359,965.60
  6. Step 6: Final answer
    x = 1,819,498.80

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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.