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Finding the Fourth Proportional to 1,666,240, 2,500,121.60 and 906,944

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Solution

The fourth proportional to 1,666,240, 2,500,121.60 and 906,944 is: 1,360,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666,240 : 2,500,121.60 = 906,944 : x
  2. Step 2: Convert to fraction form
    1,666,240/2,500,121.60 = 906,944/x
  3. Step 3: Cross multiply
    1,666,240x = 2,500,121.60 × 906,944
  4. Step 4: Simplify right side
    1,666,240x = 2,267,470,284,390.40
  5. Step 5: Solve for x
    x = 2,267,470,284,390.40/1,666,240
  6. Step 6: Final answer
    x = 1,360,830.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.