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Finding the Fourth Proportional to 607.17, 909.54 and 469.74

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Solution

The fourth proportional to 607.17, 909.54 and 469.74 is: 703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.17 : 909.54 = 469.74 : x
  2. Step 2: Convert to fraction form
    607.17/909.54 = 469.74/x
  3. Step 3: Cross multiply
    607.17x = 909.54 × 469.74
  4. Step 4: Simplify right side
    607.17x = 427,247.32
  5. Step 5: Solve for x
    x = 427,247.32/607.17
  6. Step 6: Final answer
    x = 703.67

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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.