Home / 763,404.60-1,145,106.90-684,672.60

Finding the Fourth Proportional to 763,404.60, 1,145,106.90 and 684,672.60

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Solution

The fourth proportional to 763,404.60, 1,145,106.90 and 684,672.60 is: 1,027,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,404.60 : 1,145,106.90 = 684,672.60 : x
  2. Step 2: Convert to fraction form
    763,404.60/1,145,106.90 = 684,672.60/x
  3. Step 3: Cross multiply
    763,404.60x = 1,145,106.90 × 684,672.60
  4. Step 4: Simplify right side
    763,404.60x = 784,023,318,500.94
  5. Step 5: Solve for x
    x = 784,023,318,500.94/763,404.60
  6. Step 6: Final answer
    x = 1,027,008.90

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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.