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Finding the Fourth Proportional to 664,412.94, 916,877.07 and 362,609.10

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Solution

The fourth proportional to 664,412.94, 916,877.07 and 362,609.10 is: 500,393.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,412.94 : 916,877.07 = 362,609.10 : x
  2. Step 2: Convert to fraction form
    664,412.94/916,877.07 = 362,609.10/x
  3. Step 3: Cross multiply
    664,412.94x = 916,877.07 × 362,609.10
  4. Step 4: Simplify right side
    664,412.94x = 332,467,969,163.34
  5. Step 5: Solve for x
    x = 332,467,969,163.34/664,412.94
  6. Step 6: Final answer
    x = 500,393.58

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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.