Home / 631,010.88-946,517.28-210,319.68

Finding the Fourth Proportional to 631,010.88, 946,517.28 and 210,319.68

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Solution

The fourth proportional to 631,010.88, 946,517.28 and 210,319.68 is: 315,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,010.88 : 946,517.28 = 210,319.68 : x
  2. Step 2: Convert to fraction form
    631,010.88/946,517.28 = 210,319.68/x
  3. Step 3: Cross multiply
    631,010.88x = 946,517.28 × 210,319.68
  4. Step 4: Simplify right side
    631,010.88x = 199,071,211,444.07
  5. Step 5: Solve for x
    x = 199,071,211,444.07/631,010.88
  6. Step 6: Final answer
    x = 315,479.84

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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.