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Finding the Fourth Proportional to 436,921.60, 612,934.40 and 436,921.60

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Solution

The fourth proportional to 436,921.60, 612,934.40 and 436,921.60 is: 612,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,921.60 : 612,934.40 = 436,921.60 : x
  2. Step 2: Convert to fraction form
    436,921.60/612,934.40 = 436,921.60/x
  3. Step 3: Cross multiply
    436,921.60x = 612,934.40 × 436,921.60
  4. Step 4: Simplify right side
    436,921.60x = 267,804,278,743.04
  5. Step 5: Solve for x
    x = 267,804,278,743.04/436,921.60
  6. Step 6: Final answer
    x = 612,934.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.