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Finding the Fourth Proportional to 465,459.39, 642,361.29 and 350,535.15

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Solution

The fourth proportional to 465,459.39, 642,361.29 and 350,535.15 is: 483,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,459.39 : 642,361.29 = 350,535.15 : x
  2. Step 2: Convert to fraction form
    465,459.39/642,361.29 = 350,535.15/x
  3. Step 3: Cross multiply
    465,459.39x = 642,361.29 × 350,535.15
  4. Step 4: Simplify right side
    465,459.39x = 225,170,211,144.34
  5. Step 5: Solve for x
    x = 225,170,211,144.34/465,459.39
  6. Step 6: Final answer
    x = 483,759.09

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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.