Home / 1,323,390.08-1,983,524.64-639,850.40

Finding the Fourth Proportional to 1,323,390.08, 1,983,524.64 and 639,850.40

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Solution

The fourth proportional to 1,323,390.08, 1,983,524.64 and 639,850.40 is: 959,021.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,390.08 : 1,983,524.64 = 639,850.40 : x
  2. Step 2: Convert to fraction form
    1,323,390.08/1,983,524.64 = 639,850.40/x
  3. Step 3: Cross multiply
    1,323,390.08x = 1,983,524.64 × 639,850.40
  4. Step 4: Simplify right side
    1,323,390.08x = 1,269,159,034,313.86
  5. Step 5: Solve for x
    x = 1,269,159,034,313.86/1,323,390.08
  6. Step 6: Final answer
    x = 959,021.12

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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.