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Finding the Fourth Proportional to 848.06, 1,271.24 and 477.43

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Solution

The fourth proportional to 848.06, 1,271.24 and 477.43 is: 715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.06 : 1,271.24 = 477.43 : x
  2. Step 2: Convert to fraction form
    848.06/1,271.24 = 477.43/x
  3. Step 3: Cross multiply
    848.06x = 1,271.24 × 477.43
  4. Step 4: Simplify right side
    848.06x = 606,928.11
  5. Step 5: Solve for x
    x = 606,928.11/848.06
  6. Step 6: Final answer
    x = 715.67

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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.