Home / 1,890,429.20-2,836,066.80-692,327.60

Finding the Fourth Proportional to 1,890,429.20, 2,836,066.80 and 692,327.60

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Solution

The fourth proportional to 1,890,429.20, 2,836,066.80 and 692,327.60 is: 1,038,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,429.20 : 2,836,066.80 = 692,327.60 : x
  2. Step 2: Convert to fraction form
    1,890,429.20/2,836,066.80 = 692,327.60/x
  3. Step 3: Cross multiply
    1,890,429.20x = 2,836,066.80 × 692,327.60
  4. Step 4: Simplify right side
    1,890,429.20x = 1,963,487,321,083.68
  5. Step 5: Solve for x
    x = 1,963,487,321,083.68/1,890,429.20
  6. Step 6: Final answer
    x = 1,038,646.31

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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.