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Finding the Fourth Proportional to 605,228, 907,333.80 and 263,416.16

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Solution

The fourth proportional to 605,228, 907,333.80 and 263,416.16 is: 394,903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,228 : 907,333.80 = 263,416.16 : x
  2. Step 2: Convert to fraction form
    605,228/907,333.80 = 263,416.16/x
  3. Step 3: Cross multiply
    605,228x = 907,333.80 × 263,416.16
  4. Step 4: Simplify right side
    605,228x = 239,006,385,434.21
  5. Step 5: Solve for x
    x = 239,006,385,434.21/605,228
  6. Step 6: Final answer
    x = 394,903.05

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1.5x scale

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.