Home / 787,202.75-1,086,322.59-438,340.61

Finding the Fourth Proportional to 787,202.75, 1,086,322.59 and 438,340.61

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Solution

The fourth proportional to 787,202.75, 1,086,322.59 and 438,340.61 is: 604,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,202.75 : 1,086,322.59 = 438,340.61 : x
  2. Step 2: Convert to fraction form
    787,202.75/1,086,322.59 = 438,340.61/x
  3. Step 3: Cross multiply
    787,202.75x = 1,086,322.59 × 438,340.61
  4. Step 4: Simplify right side
    787,202.75x = 476,179,309,473.19
  5. Step 5: Solve for x
    x = 476,179,309,473.19/787,202.75
  6. Step 6: Final answer
    x = 604,900.46

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Double scale
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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.