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Finding the Fourth Proportional to 1,045,672, 1,568,508 and 257,704

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Solution

The fourth proportional to 1,045,672, 1,568,508 and 257,704 is: 386,556

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,672 : 1,568,508 = 257,704 : x
  2. Step 2: Convert to fraction form
    1,045,672/1,568,508 = 257,704/x
  3. Step 3: Cross multiply
    1,045,672x = 1,568,508 × 257,704
  4. Step 4: Simplify right side
    1,045,672x = 404,210,785,632
  5. Step 5: Solve for x
    x = 404,210,785,632/1,045,672
  6. Step 6: Final answer
    x = 386,556

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