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Finding the Fourth Proportional to 1,017,490, 1,526,264.16 and 269,536

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Solution

The fourth proportional to 1,017,490, 1,526,264.16 and 269,536 is: 404,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,490 : 1,526,264.16 = 269,536 : x
  2. Step 2: Convert to fraction form
    1,017,490/1,526,264.16 = 269,536/x
  3. Step 3: Cross multiply
    1,017,490x = 1,526,264.16 × 269,536
  4. Step 4: Simplify right side
    1,017,490x = 411,383,136,629.76
  5. Step 5: Solve for x
    x = 411,383,136,629.76/1,017,490
  6. Step 6: Final answer
    x = 404,311.72

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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.