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Finding the Fourth Proportional to 456,889.76, 630,516.24 and 255,685.28

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Solution

The fourth proportional to 456,889.76, 630,516.24 and 255,685.28 is: 352,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,889.76 : 630,516.24 = 255,685.28 : x
  2. Step 2: Convert to fraction form
    456,889.76/630,516.24 = 255,685.28/x
  3. Step 3: Cross multiply
    456,889.76x = 630,516.24 × 255,685.28
  4. Step 4: Simplify right side
    456,889.76x = 161,213,721,368.95
  5. Step 5: Solve for x
    x = 161,213,721,368.95/456,889.76
  6. Step 6: Final answer
    x = 352,850.37

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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.