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Finding the Fourth Proportional to 540,018.60, 809,639.10 and 303,433.80

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Solution

The fourth proportional to 540,018.60, 809,639.10 and 303,433.80 is: 454,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,018.60 : 809,639.10 = 303,433.80 : x
  2. Step 2: Convert to fraction form
    540,018.60/809,639.10 = 303,433.80/x
  3. Step 3: Cross multiply
    540,018.60x = 809,639.10 × 303,433.80
  4. Step 4: Simplify right side
    540,018.60x = 245,671,868,741.58
  5. Step 5: Solve for x
    x = 245,671,868,741.58/540,018.60
  6. Step 6: Final answer
    x = 454,932.24

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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.