Home / 1,078,134.40-1,617,590.40-447,241.60

Finding the Fourth Proportional to 1,078,134.40, 1,617,590.40 and 447,241.60

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Solution

The fourth proportional to 1,078,134.40, 1,617,590.40 and 447,241.60 is: 671,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,134.40 : 1,617,590.40 = 447,241.60 : x
  2. Step 2: Convert to fraction form
    1,078,134.40/1,617,590.40 = 447,241.60/x
  3. Step 3: Cross multiply
    1,078,134.40x = 1,617,590.40 × 447,241.60
  4. Step 4: Simplify right side
    1,078,134.40x = 723,453,718,640.64
  5. Step 5: Solve for x
    x = 723,453,718,640.64/1,078,134.40
  6. Step 6: Final answer
    x = 671,023.69

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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.