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Finding the Fourth Proportional to 631,527.68, 871,497.88 and 345,041.60

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Solution

The fourth proportional to 631,527.68, 871,497.88 and 345,041.60 is: 476,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,527.68 : 871,497.88 = 345,041.60 : x
  2. Step 2: Convert to fraction form
    631,527.68/871,497.88 = 345,041.60/x
  3. Step 3: Cross multiply
    631,527.68x = 871,497.88 × 345,041.60
  4. Step 4: Simplify right side
    631,527.68x = 300,703,022,911.81
  5. Step 5: Solve for x
    x = 300,703,022,911.81/631,527.68
  6. Step 6: Final answer
    x = 476,151.77

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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.