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Finding the Fourth Proportional to 436,708.82, 654,673.64 and 170,407.40

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Solution

The fourth proportional to 436,708.82, 654,673.64 and 170,407.40 is: 255,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,708.82 : 654,673.64 = 170,407.40 : x
  2. Step 2: Convert to fraction form
    436,708.82/654,673.64 = 170,407.40/x
  3. Step 3: Cross multiply
    436,708.82x = 654,673.64 × 170,407.40
  4. Step 4: Simplify right side
    436,708.82x = 111,561,232,840.94
  5. Step 5: Solve for x
    x = 111,561,232,840.94/436,708.82
  6. Step 6: Final answer
    x = 255,459.08

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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.