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Finding the Fourth Proportional to 601.71, 830.51 and 503.30

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Solution

The fourth proportional to 601.71, 830.51 and 503.30 is: 694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.71 : 830.51 = 503.30 : x
  2. Step 2: Convert to fraction form
    601.71/830.51 = 503.30/x
  3. Step 3: Cross multiply
    601.71x = 830.51 × 503.30
  4. Step 4: Simplify right side
    601.71x = 417,989.01
  5. Step 5: Solve for x
    x = 417,989.01/601.71
  6. Step 6: Final answer
    x = 694.67

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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.