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Finding the Fourth Proportional to 1,236,770, 1,855,155 and 302,882

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Solution

The fourth proportional to 1,236,770, 1,855,155 and 302,882 is: 454,323

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,770 : 1,855,155 = 302,882 : x
  2. Step 2: Convert to fraction form
    1,236,770/1,855,155 = 302,882/x
  3. Step 3: Cross multiply
    1,236,770x = 1,855,155 × 302,882
  4. Step 4: Simplify right side
    1,236,770x = 561,893,056,710
  5. Step 5: Solve for x
    x = 561,893,056,710/1,236,770
  6. Step 6: Final answer
    x = 454,323

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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.