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Finding the Fourth Proportional to 572,323.10, 858,502.94 and 287,858.39

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Solution

The fourth proportional to 572,323.10, 858,502.94 and 287,858.39 is: 431,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,323.10 : 858,502.94 = 287,858.39 : x
  2. Step 2: Convert to fraction form
    572,323.10/858,502.94 = 287,858.39/x
  3. Step 3: Cross multiply
    572,323.10x = 858,502.94 × 287,858.39
  4. Step 4: Simplify right side
    572,323.10x = 247,127,268,386.86
  5. Step 5: Solve for x
    x = 247,127,268,386.86/572,323.10
  6. Step 6: Final answer
    x = 431,796.78

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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.