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Finding the Fourth Proportional to 571,668.75, 788,846.18 and 330,029.28

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Solution

The fourth proportional to 571,668.75, 788,846.18 and 330,029.28 is: 455,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,668.75 : 788,846.18 = 330,029.28 : x
  2. Step 2: Convert to fraction form
    571,668.75/788,846.18 = 330,029.28/x
  3. Step 3: Cross multiply
    571,668.75x = 788,846.18 × 330,029.28
  4. Step 4: Simplify right side
    571,668.75x = 260,342,335,166.00
  5. Step 5: Solve for x
    x = 260,342,335,166.00/571,668.75
  6. Step 6: Final answer
    x = 455,407.67

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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.