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Finding the Fourth Proportional to 631,370.01, 871,233.46 and 355,772.74

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Solution

The fourth proportional to 631,370.01, 871,233.46 and 355,772.74 is: 490,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,370.01 : 871,233.46 = 355,772.74 : x
  2. Step 2: Convert to fraction form
    631,370.01/871,233.46 = 355,772.74/x
  3. Step 3: Cross multiply
    631,370.01x = 871,233.46 × 355,772.74
  4. Step 4: Simplify right side
    631,370.01x = 309,961,115,243.88
  5. Step 5: Solve for x
    x = 309,961,115,243.88/631,370.01
  6. Step 6: Final answer
    x = 490,934.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.