Home / 1,205,549.94-1,808,325.21-939,509.76

Finding the Fourth Proportional to 1,205,549.94, 1,808,325.21 and 939,509.76

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Solution

The fourth proportional to 1,205,549.94, 1,808,325.21 and 939,509.76 is: 1,409,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,549.94 : 1,808,325.21 = 939,509.76 : x
  2. Step 2: Convert to fraction form
    1,205,549.94/1,808,325.21 = 939,509.76/x
  3. Step 3: Cross multiply
    1,205,549.94x = 1,808,325.21 × 939,509.76
  4. Step 4: Simplify right side
    1,205,549.94x = 1,698,939,184,049.05
  5. Step 5: Solve for x
    x = 1,698,939,184,049.05/1,205,549.94
  6. Step 6: Final answer
    x = 1,409,264.87

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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.