Home / 1,091,806.56-1,637,709.84-426,492

Finding the Fourth Proportional to 1,091,806.56, 1,637,709.84 and 426,492

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Solution

The fourth proportional to 1,091,806.56, 1,637,709.84 and 426,492 is: 639,738

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,806.56 : 1,637,709.84 = 426,492 : x
  2. Step 2: Convert to fraction form
    1,091,806.56/1,637,709.84 = 426,492/x
  3. Step 3: Cross multiply
    1,091,806.56x = 1,637,709.84 × 426,492
  4. Step 4: Simplify right side
    1,091,806.56x = 698,470,145,081.28
  5. Step 5: Solve for x
    x = 698,470,145,081.28/1,091,806.56
  6. Step 6: Final answer
    x = 639,738

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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.