Home / 428,795.92-643,062.24-296,526.16

Finding the Fourth Proportional to 428,795.92, 643,062.24 and 296,526.16

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Solution

The fourth proportional to 428,795.92, 643,062.24 and 296,526.16 is: 444,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,795.92 : 643,062.24 = 296,526.16 : x
  2. Step 2: Convert to fraction form
    428,795.92/643,062.24 = 296,526.16/x
  3. Step 3: Cross multiply
    428,795.92x = 643,062.24 × 296,526.16
  4. Step 4: Simplify right side
    428,795.92x = 190,684,776,668.20
  5. Step 5: Solve for x
    x = 190,684,776,668.20/428,795.92
  6. Step 6: Final answer
    x = 444,698.21

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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.