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Finding the Fourth Proportional to 525,258.46, 788,133.73 and 258,873.76

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Solution

The fourth proportional to 525,258.46, 788,133.73 and 258,873.76 is: 388,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,258.46 : 788,133.73 = 258,873.76 : x
  2. Step 2: Convert to fraction form
    525,258.46/788,133.73 = 258,873.76/x
  3. Step 3: Cross multiply
    525,258.46x = 788,133.73 × 258,873.76
  4. Step 4: Simplify right side
    525,258.46x = 204,027,142,067.93
  5. Step 5: Solve for x
    x = 204,027,142,067.93/525,258.46
  6. Step 6: Final answer
    x = 388,431.90

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1.5x scale

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.