Home / 763,353.17-1,143,285.79-364,274.20

Finding the Fourth Proportional to 763,353.17, 1,143,285.79 and 364,274.20

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Solution

The fourth proportional to 763,353.17, 1,143,285.79 and 364,274.20 is: 545,579.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,353.17 : 1,143,285.79 = 364,274.20 : x
  2. Step 2: Convert to fraction form
    763,353.17/1,143,285.79 = 364,274.20/x
  3. Step 3: Cross multiply
    763,353.17x = 1,143,285.79 × 364,274.20
  4. Step 4: Simplify right side
    763,353.17x = 416,469,516,523.62
  5. Step 5: Solve for x
    x = 416,469,516,523.62/763,353.17
  6. Step 6: Final answer
    x = 545,579.08

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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.