Home / 1,091,390.26-1,637,073.86-426,536.50

Finding the Fourth Proportional to 1,091,390.26, 1,637,073.86 and 426,536.50

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Solution

The fourth proportional to 1,091,390.26, 1,637,073.86 and 426,536.50 is: 639,800.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,390.26 : 1,637,073.86 = 426,536.50 : x
  2. Step 2: Convert to fraction form
    1,091,390.26/1,637,073.86 = 426,536.50/x
  3. Step 3: Cross multiply
    1,091,390.26x = 1,637,073.86 × 426,536.50
  4. Step 4: Simplify right side
    1,091,390.26x = 698,271,754,485.89
  5. Step 5: Solve for x
    x = 698,271,754,485.89/1,091,390.26
  6. Step 6: Final answer
    x = 639,800.24

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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.