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Finding the Fourth Proportional to 880,373.60, 1,318,810.80 and 505,959.20

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Solution

The fourth proportional to 880,373.60, 1,318,810.80 and 505,959.20 is: 757,933.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,373.60 : 1,318,810.80 = 505,959.20 : x
  2. Step 2: Convert to fraction form
    880,373.60/1,318,810.80 = 505,959.20/x
  3. Step 3: Cross multiply
    880,373.60x = 1,318,810.80 × 505,959.20
  4. Step 4: Simplify right side
    880,373.60x = 667,264,457,319.36
  5. Step 5: Solve for x
    x = 667,264,457,319.36/880,373.60
  6. Step 6: Final answer
    x = 757,933.29

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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.