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Finding the Fourth Proportional to 628,629.92, 867,896.88 and 432,730.88

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Solution

The fourth proportional to 628,629.92, 867,896.88 and 432,730.88 is: 597,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,629.92 : 867,896.88 = 432,730.88 : x
  2. Step 2: Convert to fraction form
    628,629.92/867,896.88 = 432,730.88/x
  3. Step 3: Cross multiply
    628,629.92x = 867,896.88 × 432,730.88
  4. Step 4: Simplify right side
    628,629.92x = 375,565,780,631.65
  5. Step 5: Solve for x
    x = 375,565,780,631.65/628,629.92
  6. Step 6: Final answer
    x = 597,435.42

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1.5x scale

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.