Home / 761,963.92-1,142,865.66-312,732.24

Finding the Fourth Proportional to 761,963.92, 1,142,865.66 and 312,732.24

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Solution

The fourth proportional to 761,963.92, 1,142,865.66 and 312,732.24 is: 469,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,963.92 : 1,142,865.66 = 312,732.24 : x
  2. Step 2: Convert to fraction form
    761,963.92/1,142,865.66 = 312,732.24/x
  3. Step 3: Cross multiply
    761,963.92x = 1,142,865.66 × 312,732.24
  4. Step 4: Simplify right side
    761,963.92x = 357,410,937,870.88
  5. Step 5: Solve for x
    x = 357,410,937,870.88/761,963.92
  6. Step 6: Final answer
    x = 469,065.44

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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.