Home / 447,746.40-671,619.60-306,028.80

Finding the Fourth Proportional to 447,746.40, 671,619.60 and 306,028.80

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Solution

The fourth proportional to 447,746.40, 671,619.60 and 306,028.80 is: 459,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,746.40 : 671,619.60 = 306,028.80 : x
  2. Step 2: Convert to fraction form
    447,746.40/671,619.60 = 306,028.80/x
  3. Step 3: Cross multiply
    447,746.40x = 671,619.60 × 306,028.80
  4. Step 4: Simplify right side
    447,746.40x = 205,534,940,244.48
  5. Step 5: Solve for x
    x = 205,534,940,244.48/447,746.40
  6. Step 6: Final answer
    x = 459,043.20

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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.