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Finding the Fourth Proportional to 697.06, 1,050.52 and 656.02

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Solution

The fourth proportional to 697.06, 1,050.52 and 656.02 is: 988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.06 : 1,050.52 = 656.02 : x
  2. Step 2: Convert to fraction form
    697.06/1,050.52 = 656.02/x
  3. Step 3: Cross multiply
    697.06x = 1,050.52 × 656.02
  4. Step 4: Simplify right side
    697.06x = 689,162.13
  5. Step 5: Solve for x
    x = 689,162.13/697.06
  6. Step 6: Final answer
    x = 988.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.