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Finding the Fourth Proportional to 612,672.60, 858,627.38 and 612,672.60

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Solution

The fourth proportional to 612,672.60, 858,627.38 and 612,672.60 is: 858,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,672.60 : 858,627.38 = 612,672.60 : x
  2. Step 2: Convert to fraction form
    612,672.60/858,627.38 = 612,672.60/x
  3. Step 3: Cross multiply
    612,672.60x = 858,627.38 × 612,672.60
  4. Step 4: Simplify right side
    612,672.60x = 526,057,466,272.43
  5. Step 5: Solve for x
    x = 526,057,466,272.43/612,672.60
  6. Step 6: Final answer
    x = 858,627.38

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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.