Home / 721,669.12-1,082,607.36-223,072

Finding the Fourth Proportional to 721,669.12, 1,082,607.36 and 223,072

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Solution

The fourth proportional to 721,669.12, 1,082,607.36 and 223,072 is: 334,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,669.12 : 1,082,607.36 = 223,072 : x
  2. Step 2: Convert to fraction form
    721,669.12/1,082,607.36 = 223,072/x
  3. Step 3: Cross multiply
    721,669.12x = 1,082,607.36 × 223,072
  4. Step 4: Simplify right side
    721,669.12x = 241,499,389,009.92
  5. Step 5: Solve for x
    x = 241,499,389,009.92/721,669.12
  6. Step 6: Final answer
    x = 334,640.05

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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.