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Finding the Fourth Proportional to 680,807.20, 1,021,210.80 and 182,171.20

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Solution

The fourth proportional to 680,807.20, 1,021,210.80 and 182,171.20 is: 273,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,807.20 : 1,021,210.80 = 182,171.20 : x
  2. Step 2: Convert to fraction form
    680,807.20/1,021,210.80 = 182,171.20/x
  3. Step 3: Cross multiply
    680,807.20x = 1,021,210.80 × 182,171.20
  4. Step 4: Simplify right side
    680,807.20x = 186,035,196,888.96
  5. Step 5: Solve for x
    x = 186,035,196,888.96/680,807.20
  6. Step 6: Final answer
    x = 273,256.80

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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.