Home / 2,661,012.60-3,990,644.10-977,897.40

Finding the Fourth Proportional to 2,661,012.60, 3,990,644.10 and 977,897.40

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Solution

The fourth proportional to 2,661,012.60, 3,990,644.10 and 977,897.40 is: 1,466,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,012.60 : 3,990,644.10 = 977,897.40 : x
  2. Step 2: Convert to fraction form
    2,661,012.60/3,990,644.10 = 977,897.40/x
  3. Step 3: Cross multiply
    2,661,012.60x = 3,990,644.10 × 977,897.40
  4. Step 4: Simplify right side
    2,661,012.60x = 3,902,440,489,715.34
  5. Step 5: Solve for x
    x = 3,902,440,489,715.34/2,661,012.60
  6. Step 6: Final answer
    x = 1,466,524.62

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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.