Home / 1,078,108.40-1,617,551.40-447,215.60

Finding the Fourth Proportional to 1,078,108.40, 1,617,551.40 and 447,215.60

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Solution

The fourth proportional to 1,078,108.40, 1,617,551.40 and 447,215.60 is: 670,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,108.40 : 1,617,551.40 = 447,215.60 : x
  2. Step 2: Convert to fraction form
    1,078,108.40/1,617,551.40 = 447,215.60/x
  3. Step 3: Cross multiply
    1,078,108.40x = 1,617,551.40 × 447,215.60
  4. Step 4: Simplify right side
    1,078,108.40x = 723,394,219,881.84
  5. Step 5: Solve for x
    x = 723,394,219,881.84/1,078,108.40
  6. Step 6: Final answer
    x = 670,984.68

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Double scale
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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.