Home / 1,111,038.88-1,666,213.78-400,974.64

Finding the Fourth Proportional to 1,111,038.88, 1,666,213.78 and 400,974.64

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Solution

The fourth proportional to 1,111,038.88, 1,666,213.78 and 400,974.64 is: 601,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,038.88 : 1,666,213.78 = 400,974.64 : x
  2. Step 2: Convert to fraction form
    1,111,038.88/1,666,213.78 = 400,974.64/x
  3. Step 3: Cross multiply
    1,111,038.88x = 1,666,213.78 × 400,974.64
  4. Step 4: Simplify right side
    1,111,038.88x = 668,109,470,598.54
  5. Step 5: Solve for x
    x = 668,109,470,598.54/1,111,038.88
  6. Step 6: Final answer
    x = 601,337.62

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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.