Home / 999,979.48-1,500,116.91-289,915.25

Finding the Fourth Proportional to 999,979.48, 1,500,116.91 and 289,915.25

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Solution

The fourth proportional to 999,979.48, 1,500,116.91 and 289,915.25 is: 434,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,979.48 : 1,500,116.91 = 289,915.25 : x
  2. Step 2: Convert to fraction form
    999,979.48/1,500,116.91 = 289,915.25/x
  3. Step 3: Cross multiply
    999,979.48x = 1,500,116.91 × 289,915.25
  4. Step 4: Simplify right side
    999,979.48x = 434,906,770,473.04
  5. Step 5: Solve for x
    x = 434,906,770,473.04/999,979.48
  6. Step 6: Final answer
    x = 434,915.70

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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.