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Finding the Fourth Proportional to 621,551.84, 857,613.12 and 363,379.04

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Solution

The fourth proportional to 621,551.84, 857,613.12 and 363,379.04 is: 501,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,551.84 : 857,613.12 = 363,379.04 : x
  2. Step 2: Convert to fraction form
    621,551.84/857,613.12 = 363,379.04/x
  3. Step 3: Cross multiply
    621,551.84x = 857,613.12 × 363,379.04
  4. Step 4: Simplify right side
    621,551.84x = 311,638,632,237.01
  5. Step 5: Solve for x
    x = 311,638,632,237.01/621,551.84
  6. Step 6: Final answer
    x = 501,388.00

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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.