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Finding the Fourth Proportional to 459,989.93, 634,793.29 and 256,043.07

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Solution

The fourth proportional to 459,989.93, 634,793.29 and 256,043.07 is: 353,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,989.93 : 634,793.29 = 256,043.07 : x
  2. Step 2: Convert to fraction form
    459,989.93/634,793.29 = 256,043.07/x
  3. Step 3: Cross multiply
    459,989.93x = 634,793.29 × 256,043.07
  4. Step 4: Simplify right side
    459,989.93x = 162,534,422,146.89
  5. Step 5: Solve for x
    x = 162,534,422,146.89/459,989.93
  6. Step 6: Final answer
    x = 353,343.43

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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.