Home / 2,660,385.60-3,992,133.60-977,659.20

Finding the Fourth Proportional to 2,660,385.60, 3,992,133.60 and 977,659.20

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Solution

The fourth proportional to 2,660,385.60, 3,992,133.60 and 977,659.20 is: 1,467,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,385.60 : 3,992,133.60 = 977,659.20 : x
  2. Step 2: Convert to fraction form
    2,660,385.60/3,992,133.60 = 977,659.20/x
  3. Step 3: Cross multiply
    2,660,385.60x = 3,992,133.60 × 977,659.20
  4. Step 4: Simplify right side
    2,660,385.60x = 3,902,946,141,669.12
  5. Step 5: Solve for x
    x = 3,902,946,141,669.12/2,660,385.60
  6. Step 6: Final answer
    x = 1,467,060.32

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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.