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Finding the Fourth Proportional to 489,444.84, 675,736.38 and 326,330.82

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Solution

The fourth proportional to 489,444.84, 675,736.38 and 326,330.82 is: 450,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,444.84 : 675,736.38 = 326,330.82 : x
  2. Step 2: Convert to fraction form
    489,444.84/675,736.38 = 326,330.82/x
  3. Step 3: Cross multiply
    489,444.84x = 675,736.38 × 326,330.82
  4. Step 4: Simplify right side
    489,444.84x = 220,513,606,989.23
  5. Step 5: Solve for x
    x = 220,513,606,989.23/489,444.84
  6. Step 6: Final answer
    x = 450,538.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.