Home / 1,271,385.20-1,907,075.92-324,756.16

Finding the Fourth Proportional to 1,271,385.20, 1,907,075.92 and 324,756.16

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Solution

The fourth proportional to 1,271,385.20, 1,907,075.92 and 324,756.16 is: 487,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,385.20 : 1,907,075.92 = 324,756.16 : x
  2. Step 2: Convert to fraction form
    1,271,385.20/1,907,075.92 = 324,756.16/x
  3. Step 3: Cross multiply
    1,271,385.20x = 1,907,075.92 × 324,756.16
  4. Step 4: Simplify right side
    1,271,385.20x = 619,334,652,607.67
  5. Step 5: Solve for x
    x = 619,334,652,607.67/1,271,385.20
  6. Step 6: Final answer
    x = 487,133.76

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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.