Home / 694,492.15-958,436.45-388,550.33

Finding the Fourth Proportional to 694,492.15, 958,436.45 and 388,550.33

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Solution

The fourth proportional to 694,492.15, 958,436.45 and 388,550.33 is: 536,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,492.15 : 958,436.45 = 388,550.33 : x
  2. Step 2: Convert to fraction form
    694,492.15/958,436.45 = 388,550.33/x
  3. Step 3: Cross multiply
    694,492.15x = 958,436.45 × 388,550.33
  4. Step 4: Simplify right side
    694,492.15x = 372,400,798,595.60
  5. Step 5: Solve for x
    x = 372,400,798,595.60/694,492.15
  6. Step 6: Final answer
    x = 536,220.31

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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.