Home / 872,260.40-1,308,390.60-747,844.40

Finding the Fourth Proportional to 872,260.40, 1,308,390.60 and 747,844.40

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Solution

The fourth proportional to 872,260.40, 1,308,390.60 and 747,844.40 is: 1,121,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,260.40 : 1,308,390.60 = 747,844.40 : x
  2. Step 2: Convert to fraction form
    872,260.40/1,308,390.60 = 747,844.40/x
  3. Step 3: Cross multiply
    872,260.40x = 1,308,390.60 × 747,844.40
  4. Step 4: Simplify right side
    872,260.40x = 978,472,583,222.64
  5. Step 5: Solve for x
    x = 978,472,583,222.64/872,260.40
  6. Step 6: Final answer
    x = 1,121,766.60

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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.