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Finding the Fourth Proportional to 1,017,604, 1,526,406 and 317,188

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Solution

The fourth proportional to 1,017,604, 1,526,406 and 317,188 is: 475,782

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,604 : 1,526,406 = 317,188 : x
  2. Step 2: Convert to fraction form
    1,017,604/1,526,406 = 317,188/x
  3. Step 3: Cross multiply
    1,017,604x = 1,526,406 × 317,188
  4. Step 4: Simplify right side
    1,017,604x = 484,157,666,328
  5. Step 5: Solve for x
    x = 484,157,666,328/1,017,604
  6. Step 6: Final answer
    x = 475,782

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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.