Home / 2,780,543.40-4,170,815.10-983,412.60

Finding the Fourth Proportional to 2,780,543.40, 4,170,815.10 and 983,412.60

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Solution

The fourth proportional to 2,780,543.40, 4,170,815.10 and 983,412.60 is: 1,475,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,543.40 : 4,170,815.10 = 983,412.60 : x
  2. Step 2: Convert to fraction form
    2,780,543.40/4,170,815.10 = 983,412.60/x
  3. Step 3: Cross multiply
    2,780,543.40x = 4,170,815.10 × 983,412.60
  4. Step 4: Simplify right side
    2,780,543.40x = 4,101,632,121,610.26
  5. Step 5: Solve for x
    x = 4,101,632,121,610.26/2,780,543.40
  6. Step 6: Final answer
    x = 1,475,118.90

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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.