Home / 1,189,274.28-1,784,183.76-515,468.40

Finding the Fourth Proportional to 1,189,274.28, 1,784,183.76 and 515,468.40

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Solution

The fourth proportional to 1,189,274.28, 1,784,183.76 and 515,468.40 is: 773,320.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,274.28 : 1,784,183.76 = 515,468.40 : x
  2. Step 2: Convert to fraction form
    1,189,274.28/1,784,183.76 = 515,468.40/x
  3. Step 3: Cross multiply
    1,189,274.28x = 1,784,183.76 × 515,468.40
  4. Step 4: Simplify right side
    1,189,274.28x = 919,690,348,073.18
  5. Step 5: Solve for x
    x = 919,690,348,073.18/1,189,274.28
  6. Step 6: Final answer
    x = 773,320.64

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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.