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Finding the Fourth Proportional to 5,579,136, 8,368,704 and 1,376,640

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Solution

The fourth proportional to 5,579,136, 8,368,704 and 1,376,640 is: 2,064,960

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579,136 : 8,368,704 = 1,376,640 : x
  2. Step 2: Convert to fraction form
    5,579,136/8,368,704 = 1,376,640/x
  3. Step 3: Cross multiply
    5,579,136x = 8,368,704 × 1,376,640
  4. Step 4: Simplify right side
    5,579,136x = 11,520,692,674,560
  5. Step 5: Solve for x
    x = 11,520,692,674,560/5,579,136
  6. Step 6: Final answer
    x = 2,064,960

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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.