Home / 3,128,195.40-4,692,374.64-998,276.64

Finding the Fourth Proportional to 3,128,195.40, 4,692,374.64 and 998,276.64

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Solution

The fourth proportional to 3,128,195.40, 4,692,374.64 and 998,276.64 is: 1,497,440.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,195.40 : 4,692,374.64 = 998,276.64 : x
  2. Step 2: Convert to fraction form
    3,128,195.40/4,692,374.64 = 998,276.64/x
  3. Step 3: Cross multiply
    3,128,195.40x = 4,692,374.64 × 998,276.64
  4. Step 4: Simplify right side
    3,128,195.40x = 4,684,287,989,240.41
  5. Step 5: Solve for x
    x = 4,684,287,989,240.41/3,128,195.40
  6. Step 6: Final answer
    x = 1,497,440.98

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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.