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Finding the Fourth Proportional to 661,675.75, 913,110.61 and 367,370.40

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Solution

The fourth proportional to 661,675.75, 913,110.61 and 367,370.40 is: 506,970.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,675.75 : 913,110.61 = 367,370.40 : x
  2. Step 2: Convert to fraction form
    661,675.75/913,110.61 = 367,370.40/x
  3. Step 3: Cross multiply
    661,675.75x = 913,110.61 × 367,370.40
  4. Step 4: Simplify right side
    661,675.75x = 335,449,810,039.94
  5. Step 5: Solve for x
    x = 335,449,810,039.94/661,675.75
  6. Step 6: Final answer
    x = 506,970.08

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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.