Home / 721,283.04-1,082,022.98-300,460.50

Finding the Fourth Proportional to 721,283.04, 1,082,022.98 and 300,460.50

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Solution

The fourth proportional to 721,283.04, 1,082,022.98 and 300,460.50 is: 450,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,283.04 : 1,082,022.98 = 300,460.50 : x
  2. Step 2: Convert to fraction form
    721,283.04/1,082,022.98 = 300,460.50/x
  3. Step 3: Cross multiply
    721,283.04x = 1,082,022.98 × 300,460.50
  4. Step 4: Simplify right side
    721,283.04x = 325,105,164,079.99
  5. Step 5: Solve for x
    x = 325,105,164,079.99/721,283.04
  6. Step 6: Final answer
    x = 450,731.75

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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.