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Finding the Fourth Proportional to 456,663.69, 630,197.12 and 252,728.68

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Solution

The fourth proportional to 456,663.69, 630,197.12 and 252,728.68 is: 348,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,663.69 : 630,197.12 = 252,728.68 : x
  2. Step 2: Convert to fraction form
    456,663.69/630,197.12 = 252,728.68/x
  3. Step 3: Cross multiply
    456,663.69x = 630,197.12 × 252,728.68
  4. Step 4: Simplify right side
    456,663.69x = 159,268,884,918.34
  5. Step 5: Solve for x
    x = 159,268,884,918.34/456,663.69
  6. Step 6: Final answer
    x = 348,766.25

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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.