Home / 1,179,133.20-1,769,477.40-431,179.20

Finding the Fourth Proportional to 1,179,133.20, 1,769,477.40 and 431,179.20

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Solution

The fourth proportional to 1,179,133.20, 1,769,477.40 and 431,179.20 is: 647,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,133.20 : 1,769,477.40 = 431,179.20 : x
  2. Step 2: Convert to fraction form
    1,179,133.20/1,769,477.40 = 431,179.20/x
  3. Step 3: Cross multiply
    1,179,133.20x = 1,769,477.40 × 431,179.20
  4. Step 4: Simplify right side
    1,179,133.20x = 762,961,849,750.08
  5. Step 5: Solve for x
    x = 762,961,849,750.08/1,179,133.20
  6. Step 6: Final answer
    x = 647,053.15

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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.