Home / 769,322.52-1,153,983.96-208,357.20

Finding the Fourth Proportional to 769,322.52, 1,153,983.96 and 208,357.20

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Solution

The fourth proportional to 769,322.52, 1,153,983.96 and 208,357.20 is: 312,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,322.52 : 1,153,983.96 = 208,357.20 : x
  2. Step 2: Convert to fraction form
    769,322.52/1,153,983.96 = 208,357.20/x
  3. Step 3: Cross multiply
    769,322.52x = 1,153,983.96 × 208,357.20
  4. Step 4: Simplify right side
    769,322.52x = 240,440,866,750.51
  5. Step 5: Solve for x
    x = 240,440,866,750.51/769,322.52
  6. Step 6: Final answer
    x = 312,535.85

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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.