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Finding the Fourth Proportional to 896.77, 1,237.55 and 503.79

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Solution

The fourth proportional to 896.77, 1,237.55 and 503.79 is: 695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.77 : 1,237.55 = 503.79 : x
  2. Step 2: Convert to fraction form
    896.77/1,237.55 = 503.79/x
  3. Step 3: Cross multiply
    896.77x = 1,237.55 × 503.79
  4. Step 4: Simplify right side
    896.77x = 623,465.31
  5. Step 5: Solve for x
    x = 623,465.31/896.77
  6. Step 6: Final answer
    x = 695.23

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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.