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Finding the Fourth Proportional to 702,154.80, 968,968.14 and 379,863.90

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Solution

The fourth proportional to 702,154.80, 968,968.14 and 379,863.90 is: 524,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,154.80 : 968,968.14 = 379,863.90 : x
  2. Step 2: Convert to fraction form
    702,154.80/968,968.14 = 379,863.90/x
  3. Step 3: Cross multiply
    702,154.80x = 968,968.14 × 379,863.90
  4. Step 4: Simplify right side
    702,154.80x = 368,076,016,636.15
  5. Step 5: Solve for x
    x = 368,076,016,636.15/702,154.80
  6. Step 6: Final answer
    x = 524,209.22

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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.