Home / 487,821.56-730,973.77-338,353.88

Finding the Fourth Proportional to 487,821.56, 730,973.77 and 338,353.88

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Solution

The fourth proportional to 487,821.56, 730,973.77 and 338,353.88 is: 507,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,821.56 : 730,973.77 = 338,353.88 : x
  2. Step 2: Convert to fraction form
    487,821.56/730,973.77 = 338,353.88/x
  3. Step 3: Cross multiply
    487,821.56x = 730,973.77 × 338,353.88
  4. Step 4: Simplify right side
    487,821.56x = 247,327,806,756.97
  5. Step 5: Solve for x
    x = 247,327,806,756.97/487,821.56
  6. Step 6: Final answer
    x = 507,004.67

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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.