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Finding the Fourth Proportional to 824.99, 1,237.48 and 670.18

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Solution

The fourth proportional to 824.99, 1,237.48 and 670.18 is: 1,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.99 : 1,237.48 = 670.18 : x
  2. Step 2: Convert to fraction form
    824.99/1,237.48 = 670.18/x
  3. Step 3: Cross multiply
    824.99x = 1,237.48 × 670.18
  4. Step 4: Simplify right side
    824.99x = 829,334.35
  5. Step 5: Solve for x
    x = 829,334.35/824.99
  6. Step 6: Final answer
    x = 1,005.27

Related Problems

Find fourth proportional to 412.50, 618.74 and 335.09
Half scale
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Double scale
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Similar ratio
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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.