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Finding the Fourth Proportional to 659,953.30, 910,735.56 and 358,147.30

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Solution

The fourth proportional to 659,953.30, 910,735.56 and 358,147.30 is: 494,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,953.30 : 910,735.56 = 358,147.30 : x
  2. Step 2: Convert to fraction form
    659,953.30/910,735.56 = 358,147.30/x
  3. Step 3: Cross multiply
    659,953.30x = 910,735.56 × 358,147.30
  4. Step 4: Simplify right side
    659,953.30x = 326,177,481,532.21
  5. Step 5: Solve for x
    x = 326,177,481,532.21/659,953.30
  6. Step 6: Final answer
    x = 494,243.28

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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.