Home / 1,890,316.92-2,607,163.02-1,211,316.60

Finding the Fourth Proportional to 1,890,316.92, 2,607,163.02 and 1,211,316.60

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Solution

The fourth proportional to 1,890,316.92, 2,607,163.02 and 1,211,316.60 is: 1,670,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,316.92 : 2,607,163.02 = 1,211,316.60 : x
  2. Step 2: Convert to fraction form
    1,890,316.92/2,607,163.02 = 1,211,316.60/x
  3. Step 3: Cross multiply
    1,890,316.92x = 2,607,163.02 × 1,211,316.60
  4. Step 4: Simplify right side
    1,890,316.92x = 3,158,099,845,032.13
  5. Step 5: Solve for x
    x = 3,158,099,845,032.13/1,890,316.92
  6. Step 6: Final answer
    x = 1,670,672.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.