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Finding the Fourth Proportional to 444,286.31, 612,477.42 and 316,740.47

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Solution

The fourth proportional to 444,286.31, 612,477.42 and 316,740.47 is: 436,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,286.31 : 612,477.42 = 316,740.47 : x
  2. Step 2: Convert to fraction form
    444,286.31/612,477.42 = 316,740.47/x
  3. Step 3: Cross multiply
    444,286.31x = 612,477.42 × 316,740.47
  4. Step 4: Simplify right side
    444,286.31x = 193,996,385,875.19
  5. Step 5: Solve for x
    x = 193,996,385,875.19/444,286.31
  6. Step 6: Final answer
    x = 436,647.23

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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.