Home / 1,121,742.81-1,682,836.02-411,777

Finding the Fourth Proportional to 1,121,742.81, 1,682,836.02 and 411,777

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Solution

The fourth proportional to 1,121,742.81, 1,682,836.02 and 411,777 is: 617,746.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,742.81 : 1,682,836.02 = 411,777 : x
  2. Step 2: Convert to fraction form
    1,121,742.81/1,682,836.02 = 411,777/x
  3. Step 3: Cross multiply
    1,121,742.81x = 1,682,836.02 × 411,777
  4. Step 4: Simplify right side
    1,121,742.81x = 692,953,167,807.54
  5. Step 5: Solve for x
    x = 692,953,167,807.54/1,121,742.81
  6. Step 6: Final answer
    x = 617,746.92

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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.