Home / 1,191,864.77-1,787,852.24-393,216.11

Finding the Fourth Proportional to 1,191,864.77, 1,787,852.24 and 393,216.11

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Solution

The fourth proportional to 1,191,864.77, 1,787,852.24 and 393,216.11 is: 589,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,864.77 : 1,787,852.24 = 393,216.11 : x
  2. Step 2: Convert to fraction form
    1,191,864.77/1,787,852.24 = 393,216.11/x
  3. Step 3: Cross multiply
    1,191,864.77x = 1,787,852.24 × 393,216.11
  4. Step 4: Simplify right side
    1,191,864.77x = 703,012,300,341.25
  5. Step 5: Solve for x
    x = 703,012,300,341.25/1,191,864.77
  6. Step 6: Final answer
    x = 589,842.34

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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.