Home / 1,099,957.81-1,649,944.01-426,113.95

Finding the Fourth Proportional to 1,099,957.81, 1,649,944.01 and 426,113.95

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Solution

The fourth proportional to 1,099,957.81, 1,649,944.01 and 426,113.95 is: 639,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,957.81 : 1,649,944.01 = 426,113.95 : x
  2. Step 2: Convert to fraction form
    1,099,957.81/1,649,944.01 = 426,113.95/x
  3. Step 3: Cross multiply
    1,099,957.81x = 1,649,944.01 × 426,113.95
  4. Step 4: Simplify right side
    1,099,957.81x = 703,064,159,379.94
  5. Step 5: Solve for x
    x = 703,064,159,379.94/1,099,957.81
  6. Step 6: Final answer
    x = 639,173.75

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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.