Home / 2,118,400.28-2,922,720.54-1,314,050.84

Finding the Fourth Proportional to 2,118,400.28, 2,922,720.54 and 1,314,050.84

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Solution

The fourth proportional to 2,118,400.28, 2,922,720.54 and 1,314,050.84 is: 1,812,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,400.28 : 2,922,720.54 = 1,314,050.84 : x
  2. Step 2: Convert to fraction form
    2,118,400.28/2,922,720.54 = 1,314,050.84/x
  3. Step 3: Cross multiply
    2,118,400.28x = 2,922,720.54 × 1,314,050.84
  4. Step 4: Simplify right side
    2,118,400.28x = 3,840,603,380,672.25
  5. Step 5: Solve for x
    x = 3,840,603,380,672.25/2,118,400.28
  6. Step 6: Final answer
    x = 1,812,973.41

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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.