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Finding the Fourth Proportional to 634,418.10, 875,269.89 and 362,289.78

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Solution

The fourth proportional to 634,418.10, 875,269.89 and 362,289.78 is: 499,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,418.10 : 875,269.89 = 362,289.78 : x
  2. Step 2: Convert to fraction form
    634,418.10/875,269.89 = 362,289.78/x
  3. Step 3: Cross multiply
    634,418.10x = 875,269.89 × 362,289.78
  4. Step 4: Simplify right side
    634,418.10x = 317,101,335,888.72
  5. Step 5: Solve for x
    x = 317,101,335,888.72/634,418.10
  6. Step 6: Final answer
    x = 499,830.22

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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.