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Finding the Fourth Proportional to 1,477.64, 2,216.36 and 503.72

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Solution

The fourth proportional to 1,477.64, 2,216.36 and 503.72 is: 755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.64 : 2,216.36 = 503.72 : x
  2. Step 2: Convert to fraction form
    1,477.64/2,216.36 = 503.72/x
  3. Step 3: Cross multiply
    1,477.64x = 2,216.36 × 503.72
  4. Step 4: Simplify right side
    1,477.64x = 1,116,423.35
  5. Step 5: Solve for x
    x = 1,116,423.35/1,477.64
  6. Step 6: Final answer
    x = 755.54

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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.