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Finding the Fourth Proportional to 631,173.16, 871,014.36 and 344,693.16

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Solution

The fourth proportional to 631,173.16, 871,014.36 and 344,693.16 is: 475,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,173.16 : 871,014.36 = 344,693.16 : x
  2. Step 2: Convert to fraction form
    631,173.16/871,014.36 = 344,693.16/x
  3. Step 3: Cross multiply
    631,173.16x = 871,014.36 × 344,693.16
  4. Step 4: Simplify right side
    631,173.16x = 300,232,692,153.78
  5. Step 5: Solve for x
    x = 300,232,692,153.78/631,173.16
  6. Step 6: Final answer
    x = 475,674.05

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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.