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Finding the Fourth Proportional to 484,476.80, 726,838.08 and 318,588.80

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Solution

The fourth proportional to 484,476.80, 726,838.08 and 318,588.80 is: 477,964.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,476.80 : 726,838.08 = 318,588.80 : x
  2. Step 2: Convert to fraction form
    484,476.80/726,838.08 = 318,588.80/x
  3. Step 3: Cross multiply
    484,476.80x = 726,838.08 × 318,588.80
  4. Step 4: Simplify right side
    484,476.80x = 231,562,471,701.50
  5. Step 5: Solve for x
    x = 231,562,471,701.50/484,476.80
  6. Step 6: Final answer
    x = 477,964.01

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1.5x scale

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.