Home / 684,751.02-1,027,484.69-280,243.50

Finding the Fourth Proportional to 684,751.02, 1,027,484.69 and 280,243.50

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Solution

The fourth proportional to 684,751.02, 1,027,484.69 and 280,243.50 is: 420,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,751.02 : 1,027,484.69 = 280,243.50 : x
  2. Step 2: Convert to fraction form
    684,751.02/1,027,484.69 = 280,243.50/x
  3. Step 3: Cross multiply
    684,751.02x = 1,027,484.69 × 280,243.50
  4. Step 4: Simplify right side
    684,751.02x = 287,945,903,853.91
  5. Step 5: Solve for x
    x = 287,945,903,853.91/684,751.02
  6. Step 6: Final answer
    x = 420,511.83

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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.