Home / 1,188,140.28-1,782,542.58-389,983.32

Finding the Fourth Proportional to 1,188,140.28, 1,782,542.58 and 389,983.32

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Solution

The fourth proportional to 1,188,140.28, 1,782,542.58 and 389,983.32 is: 585,084.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,140.28 : 1,782,542.58 = 389,983.32 : x
  2. Step 2: Convert to fraction form
    1,188,140.28/1,782,542.58 = 389,983.32/x
  3. Step 3: Cross multiply
    1,188,140.28x = 1,782,542.58 × 389,983.32
  4. Step 4: Simplify right side
    1,188,140.28x = 695,161,873,389.77
  5. Step 5: Solve for x
    x = 695,161,873,389.77/1,188,140.28
  6. Step 6: Final answer
    x = 585,084.00

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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.