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Finding the Fourth Proportional to 901.88, 1,244.68 and 503.63

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Solution

The fourth proportional to 901.88, 1,244.68 and 503.63 is: 695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.88 : 1,244.68 = 503.63 : x
  2. Step 2: Convert to fraction form
    901.88/1,244.68 = 503.63/x
  3. Step 3: Cross multiply
    901.88x = 1,244.68 × 503.63
  4. Step 4: Simplify right side
    901.88x = 626,858.78
  5. Step 5: Solve for x
    x = 626,858.78/901.88
  6. Step 6: Final answer
    x = 695.06

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.