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Finding the Fourth Proportional to 659,815.16, 910,544.33 and 358,009.16

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Solution

The fourth proportional to 659,815.16, 910,544.33 and 358,009.16 is: 494,052.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,815.16 : 910,544.33 = 358,009.16 : x
  2. Step 2: Convert to fraction form
    659,815.16/910,544.33 = 358,009.16/x
  3. Step 3: Cross multiply
    659,815.16x = 910,544.33 × 358,009.16
  4. Step 4: Simplify right side
    659,815.16x = 325,983,204,383.30
  5. Step 5: Solve for x
    x = 325,983,204,383.30/659,815.16
  6. Step 6: Final answer
    x = 494,052.31

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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.