Home / 1,111,039.81-1,666,215.19-400,975.58

Finding the Fourth Proportional to 1,111,039.81, 1,666,215.19 and 400,975.58

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Solution

The fourth proportional to 1,111,039.81, 1,666,215.19 and 400,975.58 is: 601,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,039.81 : 1,666,215.19 = 400,975.58 : x
  2. Step 2: Convert to fraction form
    1,111,039.81/1,666,215.19 = 400,975.58/x
  3. Step 3: Cross multiply
    1,111,039.81x = 1,666,215.19 × 400,975.58
  4. Step 4: Simplify right side
    1,111,039.81x = 668,111,606,881.82
  5. Step 5: Solve for x
    x = 668,111,606,881.82/1,111,039.81
  6. Step 6: Final answer
    x = 601,339.04

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1.5x scale

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.