Home / 687,404.60-1,030,232.10-331,652.60

Finding the Fourth Proportional to 687,404.60, 1,030,232.10 and 331,652.60

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Solution

The fourth proportional to 687,404.60, 1,030,232.10 and 331,652.60 is: 497,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,404.60 : 1,030,232.10 = 331,652.60 : x
  2. Step 2: Convert to fraction form
    687,404.60/1,030,232.10 = 331,652.60/x
  3. Step 3: Cross multiply
    687,404.60x = 1,030,232.10 × 331,652.60
  4. Step 4: Simplify right side
    687,404.60x = 341,679,154,568.46
  5. Step 5: Solve for x
    x = 341,679,154,568.46/687,404.60
  6. Step 6: Final answer
    x = 497,056.83

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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.