Home / 394,941.52-592,299.12-128,725.30

Finding the Fourth Proportional to 394,941.52, 592,299.12 and 128,725.30

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Solution

The fourth proportional to 394,941.52, 592,299.12 and 128,725.30 is: 193,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,941.52 : 592,299.12 = 128,725.30 : x
  2. Step 2: Convert to fraction form
    394,941.52/592,299.12 = 128,725.30/x
  3. Step 3: Cross multiply
    394,941.52x = 592,299.12 × 128,725.30
  4. Step 4: Simplify right side
    394,941.52x = 76,243,881,911.74
  5. Step 5: Solve for x
    x = 76,243,881,911.74/394,941.52
  6. Step 6: Final answer
    x = 193,051.07

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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.