Home / 1,091,820.06-1,637,730.09-426,505.50

Finding the Fourth Proportional to 1,091,820.06, 1,637,730.09 and 426,505.50

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Solution

The fourth proportional to 1,091,820.06, 1,637,730.09 and 426,505.50 is: 639,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,820.06 : 1,637,730.09 = 426,505.50 : x
  2. Step 2: Convert to fraction form
    1,091,820.06/1,637,730.09 = 426,505.50/x
  3. Step 3: Cross multiply
    1,091,820.06x = 1,637,730.09 × 426,505.50
  4. Step 4: Simplify right side
    1,091,820.06x = 698,500,890,900.50
  5. Step 5: Solve for x
    x = 698,500,890,900.50/1,091,820.06
  6. Step 6: Final answer
    x = 639,758.25

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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.