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Finding the Fourth Proportional to 765,008, 1,055,711.04 and 447,056

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Solution

The fourth proportional to 765,008, 1,055,711.04 and 447,056 is: 616,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,008 : 1,055,711.04 = 447,056 : x
  2. Step 2: Convert to fraction form
    765,008/1,055,711.04 = 447,056/x
  3. Step 3: Cross multiply
    765,008x = 1,055,711.04 × 447,056
  4. Step 4: Simplify right side
    765,008x = 471,961,954,698.24
  5. Step 5: Solve for x
    x = 471,961,954,698.24/765,008
  6. Step 6: Final answer
    x = 616,937.28

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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.