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Finding the Fourth Proportional to 622,551.62, 859,153.16 and 380,758.25

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Solution

The fourth proportional to 622,551.62, 859,153.16 and 380,758.25 is: 525,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,551.62 : 859,153.16 = 380,758.25 : x
  2. Step 2: Convert to fraction form
    622,551.62/859,153.16 = 380,758.25/x
  3. Step 3: Cross multiply
    622,551.62x = 859,153.16 × 380,758.25
  4. Step 4: Simplify right side
    622,551.62x = 327,129,656,783.35
  5. Step 5: Solve for x
    x = 327,129,656,783.35/622,551.62
  6. Step 6: Final answer
    x = 525,465.91

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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.