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Finding the Fourth Proportional to 660,546.33, 911,548.79 and 358,740.33

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Solution

The fourth proportional to 660,546.33, 911,548.79 and 358,740.33 is: 495,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,546.33 : 911,548.79 = 358,740.33 : x
  2. Step 2: Convert to fraction form
    660,546.33/911,548.79 = 358,740.33/x
  3. Step 3: Cross multiply
    660,546.33x = 911,548.79 × 358,740.33
  4. Step 4: Simplify right side
    660,546.33x = 327,009,313,735.70
  5. Step 5: Solve for x
    x = 327,009,313,735.70/660,546.33
  6. Step 6: Final answer
    x = 495,058.86

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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.