Home / 999,990.74-1,500,141.93-325,915.65

Finding the Fourth Proportional to 999,990.74, 1,500,141.93 and 325,915.65

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Solution

The fourth proportional to 999,990.74, 1,500,141.93 and 325,915.65 is: 488,924.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,990.74 : 1,500,141.93 = 325,915.65 : x
  2. Step 2: Convert to fraction form
    999,990.74/1,500,141.93 = 325,915.65/x
  3. Step 3: Cross multiply
    999,990.74x = 1,500,141.93 × 325,915.65
  4. Step 4: Simplify right side
    999,990.74x = 488,919,732,208.21
  5. Step 5: Solve for x
    x = 488,919,732,208.21/999,990.74
  6. Step 6: Final answer
    x = 488,924.26

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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.