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Finding the Fourth Proportional to 562,700.97, 776,601.26 and 320,928.12

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Solution

The fourth proportional to 562,700.97, 776,601.26 and 320,928.12 is: 442,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,700.97 : 776,601.26 = 320,928.12 : x
  2. Step 2: Convert to fraction form
    562,700.97/776,601.26 = 320,928.12/x
  3. Step 3: Cross multiply
    562,700.97x = 776,601.26 × 320,928.12
  4. Step 4: Simplify right side
    562,700.97x = 249,233,182,361.43
  5. Step 5: Solve for x
    x = 249,233,182,361.43/562,700.97
  6. Step 6: Final answer
    x = 442,922.97

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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.