Home / 721,912.32-1,083,114.54-216,485.64

Finding the Fourth Proportional to 721,912.32, 1,083,114.54 and 216,485.64

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Solution

The fourth proportional to 721,912.32, 1,083,114.54 and 216,485.64 is: 324,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,912.32 : 1,083,114.54 = 216,485.64 : x
  2. Step 2: Convert to fraction form
    721,912.32/1,083,114.54 = 216,485.64/x
  3. Step 3: Cross multiply
    721,912.32x = 1,083,114.54 × 216,485.64
  4. Step 4: Simplify right side
    721,912.32x = 234,478,744,385.21
  5. Step 5: Solve for x
    x = 234,478,744,385.21/721,912.32
  6. Step 6: Final answer
    x = 324,802.25

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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.