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Finding the Fourth Proportional to 444,945.90, 612,482.67 and 388,258.86

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Solution

The fourth proportional to 444,945.90, 612,482.67 and 388,258.86 is: 534,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,945.90 : 612,482.67 = 388,258.86 : x
  2. Step 2: Convert to fraction form
    444,945.90/612,482.67 = 388,258.86/x
  3. Step 3: Cross multiply
    444,945.90x = 612,482.67 × 388,258.86
  4. Step 4: Simplify right side
    444,945.90x = 237,801,823,223.96
  5. Step 5: Solve for x
    x = 237,801,823,223.96/444,945.90
  6. Step 6: Final answer
    x = 534,451.09

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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.