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Finding the Fourth Proportional to 655,739.20, 983,608.80 and 655,739.20

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Solution

The fourth proportional to 655,739.20, 983,608.80 and 655,739.20 is: 983,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,739.20 : 983,608.80 = 655,739.20 : x
  2. Step 2: Convert to fraction form
    655,739.20/983,608.80 = 655,739.20/x
  3. Step 3: Cross multiply
    655,739.20x = 983,608.80 × 655,739.20
  4. Step 4: Simplify right side
    655,739.20x = 644,990,847,624.96
  5. Step 5: Solve for x
    x = 644,990,847,624.96/655,739.20
  6. Step 6: Final answer
    x = 983,608.80

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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.