Home / 389,473.12-584,313.18-123,238.36

Finding the Fourth Proportional to 389,473.12, 584,313.18 and 123,238.36

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Solution

The fourth proportional to 389,473.12, 584,313.18 and 123,238.36 is: 184,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,473.12 : 584,313.18 = 123,238.36 : x
  2. Step 2: Convert to fraction form
    389,473.12/584,313.18 = 123,238.36/x
  3. Step 3: Cross multiply
    389,473.12x = 584,313.18 × 123,238.36
  4. Step 4: Simplify right side
    389,473.12x = 72,009,798,029.58
  5. Step 5: Solve for x
    x = 72,009,798,029.58/389,473.12
  6. Step 6: Final answer
    x = 184,890.29

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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.