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Finding the Fourth Proportional to 571,999.86, 858,225.78 and 217,108.08

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Solution

The fourth proportional to 571,999.86, 858,225.78 and 217,108.08 is: 325,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,999.86 : 858,225.78 = 217,108.08 : x
  2. Step 2: Convert to fraction form
    571,999.86/858,225.78 = 217,108.08/x
  3. Step 3: Cross multiply
    571,999.86x = 858,225.78 × 217,108.08
  4. Step 4: Simplify right side
    571,999.86x = 186,327,751,302.30
  5. Step 5: Solve for x
    x = 186,327,751,302.30/571,999.86
  6. Step 6: Final answer
    x = 325,747.90

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1.5x scale

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.