Home / 1,492,028.80-2,238,043.20-1,289,075.20

Finding the Fourth Proportional to 1,492,028.80, 2,238,043.20 and 1,289,075.20

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Solution

The fourth proportional to 1,492,028.80, 2,238,043.20 and 1,289,075.20 is: 1,933,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,028.80 : 2,238,043.20 = 1,289,075.20 : x
  2. Step 2: Convert to fraction form
    1,492,028.80/2,238,043.20 = 1,289,075.20/x
  3. Step 3: Cross multiply
    1,492,028.80x = 2,238,043.20 × 1,289,075.20
  4. Step 4: Simplify right side
    1,492,028.80x = 2,885,005,985,648.64
  5. Step 5: Solve for x
    x = 2,885,005,985,648.64/1,492,028.80
  6. Step 6: Final answer
    x = 1,933,612.80

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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.