Home / 1,492,087.80-2,238,131.70-1,289,134.20

Finding the Fourth Proportional to 1,492,087.80, 2,238,131.70 and 1,289,134.20

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Solution

The fourth proportional to 1,492,087.80, 2,238,131.70 and 1,289,134.20 is: 1,933,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,087.80 : 2,238,131.70 = 1,289,134.20 : x
  2. Step 2: Convert to fraction form
    1,492,087.80/2,238,131.70 = 1,289,134.20/x
  3. Step 3: Cross multiply
    1,492,087.80x = 2,238,131.70 × 1,289,134.20
  4. Step 4: Simplify right side
    1,492,087.80x = 2,885,252,118,574.14
  5. Step 5: Solve for x
    x = 2,885,252,118,574.14/1,492,087.80
  6. Step 6: Final answer
    x = 1,933,701.30

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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.