Home / 547,846.20-821,769.30-358,889.40

Finding the Fourth Proportional to 547,846.20, 821,769.30 and 358,889.40

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Solution

The fourth proportional to 547,846.20, 821,769.30 and 358,889.40 is: 538,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,846.20 : 821,769.30 = 358,889.40 : x
  2. Step 2: Convert to fraction form
    547,846.20/821,769.30 = 358,889.40/x
  3. Step 3: Cross multiply
    547,846.20x = 821,769.30 × 358,889.40
  4. Step 4: Simplify right side
    547,846.20x = 294,924,291,015.42
  5. Step 5: Solve for x
    x = 294,924,291,015.42/547,846.20
  6. Step 6: Final answer
    x = 538,334.10

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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.