Home / 1,159,616.49-1,600,216.70-643,364.88

Finding the Fourth Proportional to 1,159,616.49, 1,600,216.70 and 643,364.88

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Solution

The fourth proportional to 1,159,616.49, 1,600,216.70 and 643,364.88 is: 887,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,616.49 : 1,600,216.70 = 643,364.88 : x
  2. Step 2: Convert to fraction form
    1,159,616.49/1,600,216.70 = 643,364.88/x
  3. Step 3: Cross multiply
    1,159,616.49x = 1,600,216.70 × 643,364.88
  4. Step 4: Simplify right side
    1,159,616.49x = 1,029,523,215,951.86
  5. Step 5: Solve for x
    x = 1,029,523,215,951.86/1,159,616.49
  6. Step 6: Final answer
    x = 887,813.54

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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.