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Finding the Fourth Proportional to 1,303.34, 1,955.27 and 437.63

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Solution

The fourth proportional to 1,303.34, 1,955.27 and 437.63 is: 656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.34 : 1,955.27 = 437.63 : x
  2. Step 2: Convert to fraction form
    1,303.34/1,955.27 = 437.63/x
  3. Step 3: Cross multiply
    1,303.34x = 1,955.27 × 437.63
  4. Step 4: Simplify right side
    1,303.34x = 855,676.13
  5. Step 5: Solve for x
    x = 855,676.13/1,303.34
  6. Step 6: Final answer
    x = 656.53

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Double scale
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1.5x scale

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.