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Finding the Fourth Proportional to 894.99, 1,342.86 and 462.45

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Solution

The fourth proportional to 894.99, 1,342.86 and 462.45 is: 693.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.99 : 1,342.86 = 462.45 : x
  2. Step 2: Convert to fraction form
    894.99/1,342.86 = 462.45/x
  3. Step 3: Cross multiply
    894.99x = 1,342.86 × 462.45
  4. Step 4: Simplify right side
    894.99x = 621,005.61
  5. Step 5: Solve for x
    x = 621,005.61/894.99
  6. Step 6: Final answer
    x = 693.87

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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.