Home / 721,314.04-1,082,069.52-300,491.52

Finding the Fourth Proportional to 721,314.04, 1,082,069.52 and 300,491.52

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Solution

The fourth proportional to 721,314.04, 1,082,069.52 and 300,491.52 is: 450,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,314.04 : 1,082,069.52 = 300,491.52 : x
  2. Step 2: Convert to fraction form
    721,314.04/1,082,069.52 = 300,491.52/x
  3. Step 3: Cross multiply
    721,314.04x = 1,082,069.52 × 300,491.52
  4. Step 4: Simplify right side
    721,314.04x = 325,152,714,810.47
  5. Step 5: Solve for x
    x = 325,152,714,810.47/721,314.04
  6. Step 6: Final answer
    x = 450,778.30

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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.