Home / 1,217,140.28-1,825,752.06-418,415

Finding the Fourth Proportional to 1,217,140.28, 1,825,752.06 and 418,415

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Solution

The fourth proportional to 1,217,140.28, 1,825,752.06 and 418,415 is: 627,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,140.28 : 1,825,752.06 = 418,415 : x
  2. Step 2: Convert to fraction form
    1,217,140.28/1,825,752.06 = 418,415/x
  3. Step 3: Cross multiply
    1,217,140.28x = 1,825,752.06 × 418,415
  4. Step 4: Simplify right side
    1,217,140.28x = 763,922,048,184.90
  5. Step 5: Solve for x
    x = 763,922,048,184.90/1,217,140.28
  6. Step 6: Final answer
    x = 627,636.81

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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.