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Finding the Fourth Proportional to 713,813.54, 985,283.22 and 459,164.72

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Solution

The fourth proportional to 713,813.54, 985,283.22 and 459,164.72 is: 633,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,813.54 : 985,283.22 = 459,164.72 : x
  2. Step 2: Convert to fraction form
    713,813.54/985,283.22 = 459,164.72/x
  3. Step 3: Cross multiply
    713,813.54x = 985,283.22 × 459,164.72
  4. Step 4: Simplify right side
    713,813.54x = 452,407,288,905.58
  5. Step 5: Solve for x
    x = 452,407,288,905.58/713,813.54
  6. Step 6: Final answer
    x = 633,789.17

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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.