Home / 2,780,270.40-4,170,405.60-983,139.60

Finding the Fourth Proportional to 2,780,270.40, 4,170,405.60 and 983,139.60

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Solution

The fourth proportional to 2,780,270.40, 4,170,405.60 and 983,139.60 is: 1,474,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,270.40 : 4,170,405.60 = 983,139.60 : x
  2. Step 2: Convert to fraction form
    2,780,270.40/4,170,405.60 = 983,139.60/x
  3. Step 3: Cross multiply
    2,780,270.40x = 4,170,405.60 × 983,139.60
  4. Step 4: Simplify right side
    2,780,270.40x = 4,100,090,893,421.76
  5. Step 5: Solve for x
    x = 4,100,090,893,421.76/2,780,270.40
  6. Step 6: Final answer
    x = 1,474,709.40

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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.