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Finding the Fourth Proportional to 441,021.88, 660,698.08 and 260,567.64

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Solution

The fourth proportional to 441,021.88, 660,698.08 and 260,567.64 is: 390,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,021.88 : 660,698.08 = 260,567.64 : x
  2. Step 2: Convert to fraction form
    441,021.88/660,698.08 = 260,567.64/x
  3. Step 3: Cross multiply
    441,021.88x = 660,698.08 × 260,567.64
  4. Step 4: Simplify right side
    441,021.88x = 172,156,539,458.13
  5. Step 5: Solve for x
    x = 172,156,539,458.13/441,021.88
  6. Step 6: Final answer
    x = 390,358.27

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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.