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Finding the Fourth Proportional to 456,708.78, 630,259.20 and 252,773.64

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Solution

The fourth proportional to 456,708.78, 630,259.20 and 252,773.64 is: 348,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,708.78 : 630,259.20 = 252,773.64 : x
  2. Step 2: Convert to fraction form
    456,708.78/630,259.20 = 252,773.64/x
  3. Step 3: Cross multiply
    456,708.78x = 630,259.20 × 252,773.64
  4. Step 4: Simplify right side
    456,708.78x = 159,312,912,127.49
  5. Step 5: Solve for x
    x = 159,312,912,127.49/456,708.78
  6. Step 6: Final answer
    x = 348,828.22

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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.