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Finding the Fourth Proportional to 654,349.96, 902,443.14 and 450,725.68

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Solution

The fourth proportional to 654,349.96, 902,443.14 and 450,725.68 is: 621,615.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,349.96 : 902,443.14 = 450,725.68 : x
  2. Step 2: Convert to fraction form
    654,349.96/902,443.14 = 450,725.68/x
  3. Step 3: Cross multiply
    654,349.96x = 902,443.14 × 450,725.68
  4. Step 4: Simplify right side
    654,349.96x = 406,754,297,937.84
  5. Step 5: Solve for x
    x = 406,754,297,937.84/654,349.96
  6. Step 6: Final answer
    x = 621,615.84

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.