Home / 839,326.90-1,258,988.78-262,994.30

Finding the Fourth Proportional to 839,326.90, 1,258,988.78 and 262,994.30

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Solution

The fourth proportional to 839,326.90, 1,258,988.78 and 262,994.30 is: 394,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,326.90 : 1,258,988.78 = 262,994.30 : x
  2. Step 2: Convert to fraction form
    839,326.90/1,258,988.78 = 262,994.30/x
  3. Step 3: Cross multiply
    839,326.90x = 1,258,988.78 × 262,994.30
  4. Step 4: Simplify right side
    839,326.90x = 331,106,868,441.51
  5. Step 5: Solve for x
    x = 331,106,868,441.51/839,326.90
  6. Step 6: Final answer
    x = 394,490.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.