Home / 1,129,669.20-1,693,969.20-656,499.60

Finding the Fourth Proportional to 1,129,669.20, 1,693,969.20 and 656,499.60

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Solution

The fourth proportional to 1,129,669.20, 1,693,969.20 and 656,499.60 is: 984,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,669.20 : 1,693,969.20 = 656,499.60 : x
  2. Step 2: Convert to fraction form
    1,129,669.20/1,693,969.20 = 656,499.60/x
  3. Step 3: Cross multiply
    1,129,669.20x = 1,693,969.20 × 656,499.60
  4. Step 4: Simplify right side
    1,129,669.20x = 1,112,090,102,212.32
  5. Step 5: Solve for x
    x = 1,112,090,102,212.32/1,129,669.20
  6. Step 6: Final answer
    x = 984,438.72

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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.