Home / 921,449.60-1,382,083.68-322,300.16

Finding the Fourth Proportional to 921,449.60, 1,382,083.68 and 322,300.16

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Solution

The fourth proportional to 921,449.60, 1,382,083.68 and 322,300.16 is: 483,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,449.60 : 1,382,083.68 = 322,300.16 : x
  2. Step 2: Convert to fraction form
    921,449.60/1,382,083.68 = 322,300.16/x
  3. Step 3: Cross multiply
    921,449.60x = 1,382,083.68 × 322,300.16
  4. Step 4: Simplify right side
    921,449.60x = 445,445,791,197.39
  5. Step 5: Solve for x
    x = 445,445,791,197.39/921,449.60
  6. Step 6: Final answer
    x = 483,418.51

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Double scale
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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.