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Finding the Fourth Proportional to 619.76, 928.26 and 606.08

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Solution

The fourth proportional to 619.76, 928.26 and 606.08 is: 907.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.76 : 928.26 = 606.08 : x
  2. Step 2: Convert to fraction form
    619.76/928.26 = 606.08/x
  3. Step 3: Cross multiply
    619.76x = 928.26 × 606.08
  4. Step 4: Simplify right side
    619.76x = 562,599.82
  5. Step 5: Solve for x
    x = 562,599.82/619.76
  6. Step 6: Final answer
    x = 907.77

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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.