Home / 389,588.40-584,376.57-322,887.69

Finding the Fourth Proportional to 389,588.40, 584,376.57 and 322,887.69

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Solution

The fourth proportional to 389,588.40, 584,376.57 and 322,887.69 is: 484,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,588.40 : 584,376.57 = 322,887.69 : x
  2. Step 2: Convert to fraction form
    389,588.40/584,376.57 = 322,887.69/x
  3. Step 3: Cross multiply
    389,588.40x = 584,376.57 × 322,887.69
  4. Step 4: Simplify right side
    389,588.40x = 188,688,000,777.42
  5. Step 5: Solve for x
    x = 188,688,000,777.42/389,588.40
  6. Step 6: Final answer
    x = 484,326.54

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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.