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Finding the Fourth Proportional to 631,599.32, 871,613.16 and 345,119.36

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Solution

The fourth proportional to 631,599.32, 871,613.16 and 345,119.36 is: 476,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,599.32 : 871,613.16 = 345,119.36 : x
  2. Step 2: Convert to fraction form
    631,599.32/871,613.16 = 345,119.36/x
  3. Step 3: Cross multiply
    631,599.32x = 871,613.16 × 345,119.36
  4. Step 4: Simplify right side
    631,599.32x = 300,810,575,946.78
  5. Step 5: Solve for x
    x = 300,810,575,946.78/631,599.32
  6. Step 6: Final answer
    x = 476,268.05

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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.