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Finding the Fourth Proportional to 570,669.59, 856,146.54 and 171,317.72

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Solution

The fourth proportional to 570,669.59, 856,146.54 and 171,317.72 is: 257,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,669.59 : 856,146.54 = 171,317.72 : x
  2. Step 2: Convert to fraction form
    570,669.59/856,146.54 = 171,317.72/x
  3. Step 3: Cross multiply
    570,669.59x = 856,146.54 × 171,317.72
  4. Step 4: Simplify right side
    570,669.59x = 146,673,068,937.96
  5. Step 5: Solve for x
    x = 146,673,068,937.96/570,669.59
  6. Step 6: Final answer
    x = 257,019.25

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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.