Home / 872,009.08-1,307,451.30-416,353.86

Finding the Fourth Proportional to 872,009.08, 1,307,451.30 and 416,353.86

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Solution

The fourth proportional to 872,009.08, 1,307,451.30 and 416,353.86 is: 624,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,009.08 : 1,307,451.30 = 416,353.86 : x
  2. Step 2: Convert to fraction form
    872,009.08/1,307,451.30 = 416,353.86/x
  3. Step 3: Cross multiply
    872,009.08x = 1,307,451.30 × 416,353.86
  4. Step 4: Simplify right side
    872,009.08x = 544,362,395,517.02
  5. Step 5: Solve for x
    x = 544,362,395,517.02/872,009.08
  6. Step 6: Final answer
    x = 624,262.30

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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.