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Finding the Fourth Proportional to 869,529.60, 1,302,220.80 and 869,529.60

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Solution

The fourth proportional to 869,529.60, 1,302,220.80 and 869,529.60 is: 1,302,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,529.60 : 1,302,220.80 = 869,529.60 : x
  2. Step 2: Convert to fraction form
    869,529.60/1,302,220.80 = 869,529.60/x
  3. Step 3: Cross multiply
    869,529.60x = 1,302,220.80 × 869,529.60
  4. Step 4: Simplify right side
    869,529.60x = 1,132,319,531,335.68
  5. Step 5: Solve for x
    x = 1,132,319,531,335.68/869,529.60
  6. Step 6: Final answer
    x = 1,302,220.80

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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.