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Finding the Fourth Proportional to 694,362.66, 958,175.24 and 388,385.97

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Solution

The fourth proportional to 694,362.66, 958,175.24 and 388,385.97 is: 535,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,362.66 : 958,175.24 = 388,385.97 : x
  2. Step 2: Convert to fraction form
    694,362.66/958,175.24 = 388,385.97/x
  3. Step 3: Cross multiply
    694,362.66x = 958,175.24 × 388,385.97
  4. Step 4: Simplify right side
    694,362.66x = 372,141,818,075.45
  5. Step 5: Solve for x
    x = 372,141,818,075.45/694,362.66
  6. Step 6: Final answer
    x = 535,947.34

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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.