Home / 828,752.50-1,243,321.63-260,102.43

Finding the Fourth Proportional to 828,752.50, 1,243,321.63 and 260,102.43

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Solution

The fourth proportional to 828,752.50, 1,243,321.63 and 260,102.43 is: 390,214.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,752.50 : 1,243,321.63 = 260,102.43 : x
  2. Step 2: Convert to fraction form
    828,752.50/1,243,321.63 = 260,102.43/x
  3. Step 3: Cross multiply
    828,752.50x = 1,243,321.63 × 260,102.43
  4. Step 4: Simplify right side
    828,752.50x = 323,390,977,234.56
  5. Step 5: Solve for x
    x = 323,390,977,234.56/828,752.50
  6. Step 6: Final answer
    x = 390,214.18

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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.