Home / 778,885.80-1,168,328.70-329,457.30

Finding the Fourth Proportional to 778,885.80, 1,168,328.70 and 329,457.30

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Solution

The fourth proportional to 778,885.80, 1,168,328.70 and 329,457.30 is: 494,185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,885.80 : 1,168,328.70 = 329,457.30 : x
  2. Step 2: Convert to fraction form
    778,885.80/1,168,328.70 = 329,457.30/x
  3. Step 3: Cross multiply
    778,885.80x = 1,168,328.70 × 329,457.30
  4. Step 4: Simplify right side
    778,885.80x = 384,914,419,014.51
  5. Step 5: Solve for x
    x = 384,914,419,014.51/778,885.80
  6. Step 6: Final answer
    x = 494,185.95

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Double scale
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Similar ratio
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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.