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Finding the Fourth Proportional to 631,788.80, 947,406.72 and 188,468.48

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Solution

The fourth proportional to 631,788.80, 947,406.72 and 188,468.48 is: 282,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,788.80 : 947,406.72 = 188,468.48 : x
  2. Step 2: Convert to fraction form
    631,788.80/947,406.72 = 188,468.48/x
  3. Step 3: Cross multiply
    631,788.80x = 947,406.72 × 188,468.48
  4. Step 4: Simplify right side
    631,788.80x = 178,556,304,460.19
  5. Step 5: Solve for x
    x = 178,556,304,460.19/631,788.80
  6. Step 6: Final answer
    x = 282,620.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.