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Finding the Fourth Proportional to 519,324, 716,786.69 and 304,533.28

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Solution

The fourth proportional to 519,324, 716,786.69 and 304,533.28 is: 420,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,324 : 716,786.69 = 304,533.28 : x
  2. Step 2: Convert to fraction form
    519,324/716,786.69 = 304,533.28/x
  3. Step 3: Cross multiply
    519,324x = 716,786.69 × 304,533.28
  4. Step 4: Simplify right side
    519,324x = 218,285,401,766.04
  5. Step 5: Solve for x
    x = 218,285,401,766.04/519,324
  6. Step 6: Final answer
    x = 420,326.04

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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.