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Finding the Fourth Proportional to 801,805.87, 1,106,509.71 and 457,634.85

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Solution

The fourth proportional to 801,805.87, 1,106,509.71 and 457,634.85 is: 631,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,805.87 : 1,106,509.71 = 457,634.85 : x
  2. Step 2: Convert to fraction form
    801,805.87/1,106,509.71 = 457,634.85/x
  3. Step 3: Cross multiply
    801,805.87x = 1,106,509.71 × 457,634.85
  4. Step 4: Simplify right side
    801,805.87x = 506,377,405,159.39
  5. Step 5: Solve for x
    x = 506,377,405,159.39/801,805.87
  6. Step 6: Final answer
    x = 631,546.14

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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.