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Finding the Fourth Proportional to 646,004.17, 891,476.94 and 359,524.27

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Solution

The fourth proportional to 646,004.17, 891,476.94 and 359,524.27 is: 496,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,004.17 : 891,476.94 = 359,524.27 : x
  2. Step 2: Convert to fraction form
    646,004.17/891,476.94 = 359,524.27/x
  3. Step 3: Cross multiply
    646,004.17x = 891,476.94 × 359,524.27
  4. Step 4: Simplify right side
    646,004.17x = 320,507,596,075.33
  5. Step 5: Solve for x
    x = 320,507,596,075.33/646,004.17
  6. Step 6: Final answer
    x = 496,138.59

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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.