Home / 999,989.99-1,500,140.81-325,914.90

Finding the Fourth Proportional to 999,989.99, 1,500,140.81 and 325,914.90

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Solution

The fourth proportional to 999,989.99, 1,500,140.81 and 325,914.90 is: 488,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,989.99 : 1,500,140.81 = 325,914.90 : x
  2. Step 2: Convert to fraction form
    999,989.99/1,500,140.81 = 325,914.90/x
  3. Step 3: Cross multiply
    999,989.99x = 1,500,140.81 × 325,914.90
  4. Step 4: Simplify right side
    999,989.99x = 488,918,240,447.50
  5. Step 5: Solve for x
    x = 488,918,240,447.50/999,989.99
  6. Step 6: Final answer
    x = 488,923.13

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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.