Home / 389,317.71-583,973.06-123,078.30

Finding the Fourth Proportional to 389,317.71, 583,973.06 and 123,078.30

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Solution

The fourth proportional to 389,317.71, 583,973.06 and 123,078.30 is: 184,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,317.71 : 583,973.06 = 123,078.30 : x
  2. Step 2: Convert to fraction form
    389,317.71/583,973.06 = 123,078.30/x
  3. Step 3: Cross multiply
    389,317.71x = 583,973.06 × 123,078.30
  4. Step 4: Simplify right side
    389,317.71x = 71,874,410,855.21
  5. Step 5: Solve for x
    x = 71,874,410,855.21/389,317.71
  6. Step 6: Final answer
    x = 184,616.34

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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.