Home / 1,335,787.20-2,003,486.40-389,059.20

Finding the Fourth Proportional to 1,335,787.20, 2,003,486.40 and 389,059.20

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Solution

The fourth proportional to 1,335,787.20, 2,003,486.40 and 389,059.20 is: 583,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,787.20 : 2,003,486.40 = 389,059.20 : x
  2. Step 2: Convert to fraction form
    1,335,787.20/2,003,486.40 = 389,059.20/x
  3. Step 3: Cross multiply
    1,335,787.20x = 2,003,486.40 × 389,059.20
  4. Step 4: Simplify right side
    1,335,787.20x = 779,474,815,994.88
  5. Step 5: Solve for x
    x = 779,474,815,994.88/1,335,787.20
  6. Step 6: Final answer
    x = 583,532.18

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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.