Home / 644,615.39-966,674.01-218,037.80

Finding the Fourth Proportional to 644,615.39, 966,674.01 and 218,037.80

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Solution

The fourth proportional to 644,615.39, 966,674.01 and 218,037.80 is: 326,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,615.39 : 966,674.01 = 218,037.80 : x
  2. Step 2: Convert to fraction form
    644,615.39/966,674.01 = 218,037.80/x
  3. Step 3: Cross multiply
    644,615.39x = 966,674.01 × 218,037.80
  4. Step 4: Simplify right side
    644,615.39x = 210,771,474,457.58
  5. Step 5: Solve for x
    x = 210,771,474,457.58/644,615.39
  6. Step 6: Final answer
    x = 326,972.45

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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.