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Finding the Fourth Proportional to 484,511.60, 726,320.28 and 260,029.28

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Solution

The fourth proportional to 484,511.60, 726,320.28 and 260,029.28 is: 389,803.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,511.60 : 726,320.28 = 260,029.28 : x
  2. Step 2: Convert to fraction form
    484,511.60/726,320.28 = 260,029.28/x
  3. Step 3: Cross multiply
    484,511.60x = 726,320.28 × 260,029.28
  4. Step 4: Simplify right side
    484,511.60x = 188,864,539,457.80
  5. Step 5: Solve for x
    x = 188,864,539,457.80/484,511.60
  6. Step 6: Final answer
    x = 389,803.96

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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.