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Finding the Fourth Proportional to 886,485, 1,329,727.53 and 221,637

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Solution

The fourth proportional to 886,485, 1,329,727.53 and 221,637 is: 332,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,485 : 1,329,727.53 = 221,637 : x
  2. Step 2: Convert to fraction form
    886,485/1,329,727.53 = 221,637/x
  3. Step 3: Cross multiply
    886,485x = 1,329,727.53 × 221,637
  4. Step 4: Simplify right side
    886,485x = 294,716,820,566.61
  5. Step 5: Solve for x
    x = 294,716,820,566.61/886,485
  6. Step 6: Final answer
    x = 332,455.51

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1.5x scale

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.