Home / 689,461.34-1,034,192.21-216,183.60

Finding the Fourth Proportional to 689,461.34, 1,034,192.21 and 216,183.60

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Solution

The fourth proportional to 689,461.34, 1,034,192.21 and 216,183.60 is: 324,275.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,461.34 : 1,034,192.21 = 216,183.60 : x
  2. Step 2: Convert to fraction form
    689,461.34/1,034,192.21 = 216,183.60/x
  3. Step 3: Cross multiply
    689,461.34x = 1,034,192.21 × 216,183.60
  4. Step 4: Simplify right side
    689,461.34x = 223,575,393,968.84
  5. Step 5: Solve for x
    x = 223,575,393,968.84/689,461.34
  6. Step 6: Final answer
    x = 324,275.46

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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.