Home / 999,509.89-1,499,263.66-325,590.11

Finding the Fourth Proportional to 999,509.89, 1,499,263.66 and 325,590.11

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Solution

The fourth proportional to 999,509.89, 1,499,263.66 and 325,590.11 is: 488,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,509.89 : 1,499,263.66 = 325,590.11 : x
  2. Step 2: Convert to fraction form
    999,509.89/1,499,263.66 = 325,590.11/x
  3. Step 3: Cross multiply
    999,509.89x = 1,499,263.66 × 325,590.11
  4. Step 4: Simplify right side
    999,509.89x = 488,145,419,978.40
  5. Step 5: Solve for x
    x = 488,145,419,978.40/999,509.89
  6. Step 6: Final answer
    x = 488,384.78

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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.