Home / 2,871,779.80-4,307,669.70-978,064.60

Finding the Fourth Proportional to 2,871,779.80, 4,307,669.70 and 978,064.60

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Solution

The fourth proportional to 2,871,779.80, 4,307,669.70 and 978,064.60 is: 1,467,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,779.80 : 4,307,669.70 = 978,064.60 : x
  2. Step 2: Convert to fraction form
    2,871,779.80/4,307,669.70 = 978,064.60/x
  3. Step 3: Cross multiply
    2,871,779.80x = 4,307,669.70 × 978,064.60
  4. Step 4: Simplify right side
    2,871,779.80x = 4,213,179,242,062.62
  5. Step 5: Solve for x
    x = 4,213,179,242,062.62/2,871,779.80
  6. Step 6: Final answer
    x = 1,467,096.90

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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.