Home / 1,968,504.87-2,953,075.32-831,438

Finding the Fourth Proportional to 1,968,504.87, 2,953,075.32 and 831,438

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Solution

The fourth proportional to 1,968,504.87, 2,953,075.32 and 831,438 is: 1,247,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,504.87 : 2,953,075.32 = 831,438 : x
  2. Step 2: Convert to fraction form
    1,968,504.87/2,953,075.32 = 831,438/x
  3. Step 3: Cross multiply
    1,968,504.87x = 2,953,075.32 × 831,438
  4. Step 4: Simplify right side
    1,968,504.87x = 2,455,299,037,910.16
  5. Step 5: Solve for x
    x = 2,455,299,037,910.16/1,968,504.87
  6. Step 6: Final answer
    x = 1,247,291.32

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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.