Home / 808,564.80-1,212,847.20-721,473.60

Finding the Fourth Proportional to 808,564.80, 1,212,847.20 and 721,473.60

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Solution

The fourth proportional to 808,564.80, 1,212,847.20 and 721,473.60 is: 1,082,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,564.80 : 1,212,847.20 = 721,473.60 : x
  2. Step 2: Convert to fraction form
    808,564.80/1,212,847.20 = 721,473.60/x
  3. Step 3: Cross multiply
    808,564.80x = 1,212,847.20 × 721,473.60
  4. Step 4: Simplify right side
    808,564.80x = 875,037,235,633.92
  5. Step 5: Solve for x
    x = 875,037,235,633.92/808,564.80
  6. Step 6: Final answer
    x = 1,082,210.40

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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.