Home / 571,320.56-856,712.24-211,242.64

Finding the Fourth Proportional to 571,320.56, 856,712.24 and 211,242.64

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Solution

The fourth proportional to 571,320.56, 856,712.24 and 211,242.64 is: 316,764.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,320.56 : 856,712.24 = 211,242.64 : x
  2. Step 2: Convert to fraction form
    571,320.56/856,712.24 = 211,242.64/x
  3. Step 3: Cross multiply
    571,320.56x = 856,712.24 × 211,242.64
  4. Step 4: Simplify right side
    571,320.56x = 180,974,155,297.91
  5. Step 5: Solve for x
    x = 180,974,155,297.91/571,320.56
  6. Step 6: Final answer
    x = 316,764.65

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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.