Home / 872,605.56-1,308,898.53-340,500.36

Finding the Fourth Proportional to 872,605.56, 1,308,898.53 and 340,500.36

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Solution

The fourth proportional to 872,605.56, 1,308,898.53 and 340,500.36 is: 510,746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,605.56 : 1,308,898.53 = 340,500.36 : x
  2. Step 2: Convert to fraction form
    872,605.56/1,308,898.53 = 340,500.36/x
  3. Step 3: Cross multiply
    872,605.56x = 1,308,898.53 × 340,500.36
  4. Step 4: Simplify right side
    872,605.56x = 445,680,420,668.47
  5. Step 5: Solve for x
    x = 445,680,420,668.47/872,605.56
  6. Step 6: Final answer
    x = 510,746.71

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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.