Home / 1,149,488-1,586,179.84-640,237.76

Finding the Fourth Proportional to 1,149,488, 1,586,179.84 and 640,237.76

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Solution

The fourth proportional to 1,149,488, 1,586,179.84 and 640,237.76 is: 883,464.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,488 : 1,586,179.84 = 640,237.76 : x
  2. Step 2: Convert to fraction form
    1,149,488/1,586,179.84 = 640,237.76/x
  3. Step 3: Cross multiply
    1,149,488x = 1,586,179.84 × 640,237.76
  4. Step 4: Simplify right side
    1,149,488x = 1,015,532,227,718.76
  5. Step 5: Solve for x
    x = 1,015,532,227,718.76/1,149,488
  6. Step 6: Final answer
    x = 883,464.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.