Home / 778,852.80-1,168,279.20-329,424.30

Finding the Fourth Proportional to 778,852.80, 1,168,279.20 and 329,424.30

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Solution

The fourth proportional to 778,852.80, 1,168,279.20 and 329,424.30 is: 494,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,852.80 : 1,168,279.20 = 329,424.30 : x
  2. Step 2: Convert to fraction form
    778,852.80/1,168,279.20 = 329,424.30/x
  3. Step 3: Cross multiply
    778,852.80x = 1,168,279.20 × 329,424.30
  4. Step 4: Simplify right side
    778,852.80x = 384,859,557,664.56
  5. Step 5: Solve for x
    x = 384,859,557,664.56/778,852.80
  6. Step 6: Final answer
    x = 494,136.45

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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.