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Finding the Fourth Proportional to 881,657.60, 1,320,412.80 and 881,657.60

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Solution

The fourth proportional to 881,657.60, 1,320,412.80 and 881,657.60 is: 1,320,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,657.60 : 1,320,412.80 = 881,657.60 : x
  2. Step 2: Convert to fraction form
    881,657.60/1,320,412.80 = 881,657.60/x
  3. Step 3: Cross multiply
    881,657.60x = 1,320,412.80 × 881,657.60
  4. Step 4: Simplify right side
    881,657.60x = 1,164,151,980,257.28
  5. Step 5: Solve for x
    x = 1,164,151,980,257.28/881,657.60
  6. Step 6: Final answer
    x = 1,320,412.80

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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.