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Finding the Fourth Proportional to 848.47, 1,271.62 and 738.33

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Solution

The fourth proportional to 848.47, 1,271.62 and 738.33 is: 1,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.47 : 1,271.62 = 738.33 : x
  2. Step 2: Convert to fraction form
    848.47/1,271.62 = 738.33/x
  3. Step 3: Cross multiply
    848.47x = 1,271.62 × 738.33
  4. Step 4: Simplify right side
    848.47x = 938,875.19
  5. Step 5: Solve for x
    x = 938,875.19/848.47
  6. Step 6: Final answer
    x = 1,106.55

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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.