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Finding the Fourth Proportional to 528,065.68, 790,951.20 and 325,042.96

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Solution

The fourth proportional to 528,065.68, 790,951.20 and 325,042.96 is: 486,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,065.68 : 790,951.20 = 325,042.96 : x
  2. Step 2: Convert to fraction form
    528,065.68/790,951.20 = 325,042.96/x
  3. Step 3: Cross multiply
    528,065.68x = 790,951.20 × 325,042.96
  4. Step 4: Simplify right side
    528,065.68x = 257,093,119,263.55
  5. Step 5: Solve for x
    x = 257,093,119,263.55/528,065.68
  6. Step 6: Final answer
    x = 486,858.22

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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.