Home / 389,133.52-581,921.52-282,874.48

Finding the Fourth Proportional to 389,133.52, 581,921.52 and 282,874.48

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Solution

The fourth proportional to 389,133.52, 581,921.52 and 282,874.48 is: 423,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,133.52 : 581,921.52 = 282,874.48 : x
  2. Step 2: Convert to fraction form
    389,133.52/581,921.52 = 282,874.48/x
  3. Step 3: Cross multiply
    389,133.52x = 581,921.52 × 282,874.48
  4. Step 4: Simplify right side
    389,133.52x = 164,610,747,370.81
  5. Step 5: Solve for x
    x = 164,610,747,370.81/389,133.52
  6. Step 6: Final answer
    x = 423,018.68

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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.