Home / 535,721.43-739,246.67-317,892.50

Finding the Fourth Proportional to 535,721.43, 739,246.67 and 317,892.50

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Solution

The fourth proportional to 535,721.43, 739,246.67 and 317,892.50 is: 438,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,721.43 : 739,246.67 = 317,892.50 : x
  2. Step 2: Convert to fraction form
    535,721.43/739,246.67 = 317,892.50/x
  3. Step 3: Cross multiply
    535,721.43x = 739,246.67 × 317,892.50
  4. Step 4: Simplify right side
    535,721.43x = 235,000,976,667.96
  5. Step 5: Solve for x
    x = 235,000,976,667.96/535,721.43
  6. Step 6: Final answer
    x = 438,662.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.