Home / 1,447,997.40-2,171,996.10-917,868.60

Finding the Fourth Proportional to 1,447,997.40, 2,171,996.10 and 917,868.60

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Solution

The fourth proportional to 1,447,997.40, 2,171,996.10 and 917,868.60 is: 1,376,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,997.40 : 2,171,996.10 = 917,868.60 : x
  2. Step 2: Convert to fraction form
    1,447,997.40/2,171,996.10 = 917,868.60/x
  3. Step 3: Cross multiply
    1,447,997.40x = 2,171,996.10 × 917,868.60
  4. Step 4: Simplify right side
    1,447,997.40x = 1,993,607,019,512.46
  5. Step 5: Solve for x
    x = 1,993,607,019,512.46/1,447,997.40
  6. Step 6: Final answer
    x = 1,376,802.90

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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.