Home / 1,187,111.36-1,780,651.20-288,550.64

Finding the Fourth Proportional to 1,187,111.36, 1,780,651.20 and 288,550.64

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Solution

The fourth proportional to 1,187,111.36, 1,780,651.20 and 288,550.64 is: 432,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,111.36 : 1,780,651.20 = 288,550.64 : x
  2. Step 2: Convert to fraction form
    1,187,111.36/1,780,651.20 = 288,550.64/x
  3. Step 3: Cross multiply
    1,187,111.36x = 1,780,651.20 × 288,550.64
  4. Step 4: Simplify right side
    1,187,111.36x = 513,808,043,376.77
  5. Step 5: Solve for x
    x = 513,808,043,376.77/1,187,111.36
  6. Step 6: Final answer
    x = 432,822.11

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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.