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Finding the Fourth Proportional to 570,390.93, 855,535.37 and 171,120.87

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Solution

The fourth proportional to 570,390.93, 855,535.37 and 171,120.87 is: 256,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,390.93 : 855,535.37 = 171,120.87 : x
  2. Step 2: Convert to fraction form
    570,390.93/855,535.37 = 171,120.87/x
  3. Step 3: Cross multiply
    570,390.93x = 855,535.37 × 171,120.87
  4. Step 4: Simplify right side
    570,390.93x = 146,399,955,974.57
  5. Step 5: Solve for x
    x = 146,399,955,974.57/570,390.93
  6. Step 6: Final answer
    x = 256,666.00

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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.