Home / 1,240,684.78-1,859,441.93-1,000,911.75

Finding the Fourth Proportional to 1,240,684.78, 1,859,441.93 and 1,000,911.75

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Solution

The fourth proportional to 1,240,684.78, 1,859,441.93 and 1,000,911.75 is: 1,500,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,684.78 : 1,859,441.93 = 1,000,911.75 : x
  2. Step 2: Convert to fraction form
    1,240,684.78/1,859,441.93 = 1,000,911.75/x
  3. Step 3: Cross multiply
    1,240,684.78x = 1,859,441.93 × 1,000,911.75
  4. Step 4: Simplify right side
    1,240,684.78x = 1,861,137,277,611.70
  5. Step 5: Solve for x
    x = 1,861,137,277,611.70/1,240,684.78
  6. Step 6: Final answer
    x = 1,500,088.75

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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.