Home / 763,322.40-1,144,983.60-443,145.60

Finding the Fourth Proportional to 763,322.40, 1,144,983.60 and 443,145.60

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Solution

The fourth proportional to 763,322.40, 1,144,983.60 and 443,145.60 is: 664,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,322.40 : 1,144,983.60 = 443,145.60 : x
  2. Step 2: Convert to fraction form
    763,322.40/1,144,983.60 = 443,145.60/x
  3. Step 3: Cross multiply
    763,322.40x = 1,144,983.60 × 443,145.60
  4. Step 4: Simplify right side
    763,322.40x = 507,394,444,412.16
  5. Step 5: Solve for x
    x = 507,394,444,412.16/763,322.40
  6. Step 6: Final answer
    x = 664,718.40

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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.