Home / 1,520,235.20-2,097,924.77-831,907.20

Finding the Fourth Proportional to 1,520,235.20, 2,097,924.77 and 831,907.20

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Solution

The fourth proportional to 1,520,235.20, 2,097,924.77 and 831,907.20 is: 1,148,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,235.20 : 2,097,924.77 = 831,907.20 : x
  2. Step 2: Convert to fraction form
    1,520,235.20/2,097,924.77 = 831,907.20/x
  3. Step 3: Cross multiply
    1,520,235.20x = 2,097,924.77 × 831,907.20
  4. Step 4: Simplify right side
    1,520,235.20x = 1,745,278,731,448.12
  5. Step 5: Solve for x
    x = 1,745,278,731,448.12/1,520,235.20
  6. Step 6: Final answer
    x = 1,148,032.05

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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.