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Finding the Fourth Proportional to 658,205.60, 985,558.80 and 658,205.60

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Solution

The fourth proportional to 658,205.60, 985,558.80 and 658,205.60 is: 985,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,205.60 : 985,558.80 = 658,205.60 : x
  2. Step 2: Convert to fraction form
    658,205.60/985,558.80 = 658,205.60/x
  3. Step 3: Cross multiply
    658,205.60x = 985,558.80 × 658,205.60
  4. Step 4: Simplify right side
    658,205.60x = 648,700,321,289.28
  5. Step 5: Solve for x
    x = 648,700,321,289.28/658,205.60
  6. Step 6: Final answer
    x = 985,558.80

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1.5x scale

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.