Home / 721,888.80-1,082,833.20-658,903.20

Finding the Fourth Proportional to 721,888.80, 1,082,833.20 and 658,903.20

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Solution

The fourth proportional to 721,888.80, 1,082,833.20 and 658,903.20 is: 988,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,888.80 : 1,082,833.20 = 658,903.20 : x
  2. Step 2: Convert to fraction form
    721,888.80/1,082,833.20 = 658,903.20/x
  3. Step 3: Cross multiply
    721,888.80x = 1,082,833.20 × 658,903.20
  4. Step 4: Simplify right side
    721,888.80x = 713,482,260,546.24
  5. Step 5: Solve for x
    x = 713,482,260,546.24/721,888.80
  6. Step 6: Final answer
    x = 988,354.80

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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.