Home / 872,335.20-1,308,502.80-809,349.60

Finding the Fourth Proportional to 872,335.20, 1,308,502.80 and 809,349.60

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Solution

The fourth proportional to 872,335.20, 1,308,502.80 and 809,349.60 is: 1,214,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,335.20 : 1,308,502.80 = 809,349.60 : x
  2. Step 2: Convert to fraction form
    872,335.20/1,308,502.80 = 809,349.60/x
  3. Step 3: Cross multiply
    872,335.20x = 1,308,502.80 × 809,349.60
  4. Step 4: Simplify right side
    872,335.20x = 1,059,036,217,778.88
  5. Step 5: Solve for x
    x = 1,059,036,217,778.88/872,335.20
  6. Step 6: Final answer
    x = 1,214,024.40

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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.