Home / 1,328,707.20-1,993,060.80-382,022.40

Finding the Fourth Proportional to 1,328,707.20, 1,993,060.80 and 382,022.40

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Solution

The fourth proportional to 1,328,707.20, 1,993,060.80 and 382,022.40 is: 573,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,707.20 : 1,993,060.80 = 382,022.40 : x
  2. Step 2: Convert to fraction form
    1,328,707.20/1,993,060.80 = 382,022.40/x
  3. Step 3: Cross multiply
    1,328,707.20x = 1,993,060.80 × 382,022.40
  4. Step 4: Simplify right side
    1,328,707.20x = 761,393,870,161.92
  5. Step 5: Solve for x
    x = 761,393,870,161.92/1,328,707.20
  6. Step 6: Final answer
    x = 573,033.60

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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.