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Finding the Fourth Proportional to 631,400.41, 871,333.35 and 359,468.30

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Solution

The fourth proportional to 631,400.41, 871,333.35 and 359,468.30 is: 496,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,400.41 : 871,333.35 = 359,468.30 : x
  2. Step 2: Convert to fraction form
    631,400.41/871,333.35 = 359,468.30/x
  3. Step 3: Cross multiply
    631,400.41x = 871,333.35 × 359,468.30
  4. Step 4: Simplify right side
    631,400.41x = 313,216,713,701.14
  5. Step 5: Solve for x
    x = 313,216,713,701.14/631,400.41
  6. Step 6: Final answer
    x = 496,066.69

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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.