Home / 694,427.32-958,346.92-388,485.45

Finding the Fourth Proportional to 694,427.32, 958,346.92 and 388,485.45

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Solution

The fourth proportional to 694,427.32, 958,346.92 and 388,485.45 is: 536,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,427.32 : 958,346.92 = 388,485.45 : x
  2. Step 2: Convert to fraction form
    694,427.32/958,346.92 = 388,485.45/x
  3. Step 3: Cross multiply
    694,427.32x = 958,346.92 × 388,485.45
  4. Step 4: Simplify right side
    694,427.32x = 372,303,834,957.92
  5. Step 5: Solve for x
    x = 372,303,834,957.92/694,427.32
  6. Step 6: Final answer
    x = 536,130.74

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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.