Home / 921,786.32-1,382,677.76-360,427.12

Finding the Fourth Proportional to 921,786.32, 1,382,677.76 and 360,427.12

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Solution

The fourth proportional to 921,786.32, 1,382,677.76 and 360,427.12 is: 540,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,786.32 : 1,382,677.76 = 360,427.12 : x
  2. Step 2: Convert to fraction form
    921,786.32/1,382,677.76 = 360,427.12/x
  3. Step 3: Cross multiply
    921,786.32x = 1,382,677.76 × 360,427.12
  4. Step 4: Simplify right side
    921,786.32x = 498,354,562,924.85
  5. Step 5: Solve for x
    x = 498,354,562,924.85/921,786.32
  6. Step 6: Final answer
    x = 540,640.01

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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.