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Finding the Fourth Proportional to 484,802.40, 727,203.60 and 297,919.20

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Solution

The fourth proportional to 484,802.40, 727,203.60 and 297,919.20 is: 446,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,802.40 : 727,203.60 = 297,919.20 : x
  2. Step 2: Convert to fraction form
    484,802.40/727,203.60 = 297,919.20/x
  3. Step 3: Cross multiply
    484,802.40x = 727,203.60 × 297,919.20
  4. Step 4: Simplify right side
    484,802.40x = 216,647,914,749.12
  5. Step 5: Solve for x
    x = 216,647,914,749.12/484,802.40
  6. Step 6: Final answer
    x = 446,878.80

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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.