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Finding the Fourth Proportional to 490,361.59, 676,727.91 and 369,289.27

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Solution

The fourth proportional to 490,361.59, 676,727.91 and 369,289.27 is: 509,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,361.59 : 676,727.91 = 369,289.27 : x
  2. Step 2: Convert to fraction form
    490,361.59/676,727.91 = 369,289.27/x
  3. Step 3: Cross multiply
    490,361.59x = 676,727.91 × 369,289.27
  4. Step 4: Simplify right side
    490,361.59x = 249,908,355,872.53
  5. Step 5: Solve for x
    x = 249,908,355,872.53/490,361.59
  6. Step 6: Final answer
    x = 509,640.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.