Home / 743,302.32-1,114,953.48-322,578.20

Finding the Fourth Proportional to 743,302.32, 1,114,953.48 and 322,578.20

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Solution

The fourth proportional to 743,302.32, 1,114,953.48 and 322,578.20 is: 483,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,302.32 : 1,114,953.48 = 322,578.20 : x
  2. Step 2: Convert to fraction form
    743,302.32/1,114,953.48 = 322,578.20/x
  3. Step 3: Cross multiply
    743,302.32x = 1,114,953.48 × 322,578.20
  4. Step 4: Simplify right side
    743,302.32x = 359,659,686,662.14
  5. Step 5: Solve for x
    x = 359,659,686,662.14/743,302.32
  6. Step 6: Final answer
    x = 483,867.30

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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.