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Finding the Fourth Proportional to 1,139,202, 1,707,685.20 and 634,005

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Solution

The fourth proportional to 1,139,202, 1,707,685.20 and 634,005 is: 950,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,202 : 1,707,685.20 = 634,005 : x
  2. Step 2: Convert to fraction form
    1,139,202/1,707,685.20 = 634,005/x
  3. Step 3: Cross multiply
    1,139,202x = 1,707,685.20 × 634,005
  4. Step 4: Simplify right side
    1,139,202x = 1,082,680,955,226
  5. Step 5: Solve for x
    x = 1,082,680,955,226/1,139,202
  6. Step 6: Final answer
    x = 950,385.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.