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Finding the Fourth Proportional to 570,393.92, 855,785.36 and 215,510.24

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Solution

The fourth proportional to 570,393.92, 855,785.36 and 215,510.24 is: 323,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,393.92 : 855,785.36 = 215,510.24 : x
  2. Step 2: Convert to fraction form
    570,393.92/855,785.36 = 215,510.24/x
  3. Step 3: Cross multiply
    570,393.92x = 855,785.36 × 215,510.24
  4. Step 4: Simplify right side
    570,393.92x = 184,430,508,322.09
  5. Step 5: Solve for x
    x = 184,430,508,322.09/570,393.92
  6. Step 6: Final answer
    x = 323,338.84

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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.