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Finding the Fourth Proportional to 675,182.88, 931,986.84 and 388,817.04

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Solution

The fourth proportional to 675,182.88, 931,986.84 and 388,817.04 is: 536,702.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,182.88 : 931,986.84 = 388,817.04 : x
  2. Step 2: Convert to fraction form
    675,182.88/931,986.84 = 388,817.04/x
  3. Step 3: Cross multiply
    675,182.88x = 931,986.84 × 388,817.04
  4. Step 4: Simplify right side
    675,182.88x = 362,372,364,447.75
  5. Step 5: Solve for x
    x = 362,372,364,447.75/675,182.88
  6. Step 6: Final answer
    x = 536,702.54

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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.