Home / 789,338.84-1,182,516.06-389,511.32

Finding the Fourth Proportional to 789,338.84, 1,182,516.06 and 389,511.32

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Solution

The fourth proportional to 789,338.84, 1,182,516.06 and 389,511.32 is: 583,530.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,338.84 : 1,182,516.06 = 389,511.32 : x
  2. Step 2: Convert to fraction form
    789,338.84/1,182,516.06 = 389,511.32/x
  3. Step 3: Cross multiply
    789,338.84x = 1,182,516.06 × 389,511.32
  4. Step 4: Simplify right side
    789,338.84x = 460,603,391,451.80
  5. Step 5: Solve for x
    x = 460,603,391,451.80/789,338.84
  6. Step 6: Final answer
    x = 583,530.63

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1.5x scale

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.