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Finding the Fourth Proportional to 848.20, 1,263.53 and 773.32

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Solution

The fourth proportional to 848.20, 1,263.53 and 773.32 is: 1,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.20 : 1,263.53 = 773.32 : x
  2. Step 2: Convert to fraction form
    848.20/1,263.53 = 773.32/x
  3. Step 3: Cross multiply
    848.20x = 1,263.53 × 773.32
  4. Step 4: Simplify right side
    848.20x = 977,113.02
  5. Step 5: Solve for x
    x = 977,113.02/848.20
  6. Step 6: Final answer
    x = 1,151.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.