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Finding the Fourth Proportional to 657,081.34, 985,615.43 and 207,802.28

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Solution

The fourth proportional to 657,081.34, 985,615.43 and 207,802.28 is: 311,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,081.34 : 985,615.43 = 207,802.28 : x
  2. Step 2: Convert to fraction form
    657,081.34/985,615.43 = 207,802.28/x
  3. Step 3: Cross multiply
    657,081.34x = 985,615.43 × 207,802.28
  4. Step 4: Simplify right side
    657,081.34x = 204,813,136,540.73
  5. Step 5: Solve for x
    x = 204,813,136,540.73/657,081.34
  6. Step 6: Final answer
    x = 311,701.34

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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.