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Finding the Fourth Proportional to 849.83, 1,275.59 and 503.51

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Solution

The fourth proportional to 849.83, 1,275.59 and 503.51 is: 755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    849.83 : 1,275.59 = 503.51 : x
  2. Step 2: Convert to fraction form
    849.83/1,275.59 = 503.51/x
  3. Step 3: Cross multiply
    849.83x = 1,275.59 × 503.51
  4. Step 4: Simplify right side
    849.83x = 642,267.20
  5. Step 5: Solve for x
    x = 642,267.20/849.83
  6. Step 6: Final answer
    x = 755.76

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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.