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Finding the Fourth Proportional to 418,295.34, 576,955.71 and 275,009.58

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Solution

The fourth proportional to 418,295.34, 576,955.71 and 275,009.58 is: 379,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,295.34 : 576,955.71 = 275,009.58 : x
  2. Step 2: Convert to fraction form
    418,295.34/576,955.71 = 275,009.58/x
  3. Step 3: Cross multiply
    418,295.34x = 576,955.71 × 275,009.58
  4. Step 4: Simplify right side
    418,295.34x = 158,668,347,485.70
  5. Step 5: Solve for x
    x = 158,668,347,485.70/418,295.34
  6. Step 6: Final answer
    x = 379,321.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.