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Finding the Fourth Proportional to 646,294.16, 891,884.04 and 359,806.88

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Solution

The fourth proportional to 646,294.16, 891,884.04 and 359,806.88 is: 496,532.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,294.16 : 891,884.04 = 359,806.88 : x
  2. Step 2: Convert to fraction form
    646,294.16/891,884.04 = 359,806.88/x
  3. Step 3: Cross multiply
    646,294.16x = 891,884.04 × 359,806.88
  4. Step 4: Simplify right side
    646,294.16x = 320,906,013,754.20
  5. Step 5: Solve for x
    x = 320,906,013,754.20/646,294.16
  6. Step 6: Final answer
    x = 496,532.44

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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.