Home / 631,591.90-946,927.05-257,422.30

Finding the Fourth Proportional to 631,591.90, 946,927.05 and 257,422.30

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Solution

The fourth proportional to 631,591.90, 946,927.05 and 257,422.30 is: 385,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,591.90 : 946,927.05 = 257,422.30 : x
  2. Step 2: Convert to fraction form
    631,591.90/946,927.05 = 257,422.30/x
  3. Step 3: Cross multiply
    631,591.90x = 946,927.05 × 257,422.30
  4. Step 4: Simplify right side
    631,591.90x = 243,760,139,143.22
  5. Step 5: Solve for x
    x = 243,760,139,143.22/631,591.90
  6. Step 6: Final answer
    x = 385,945.64

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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.