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Finding the Fourth Proportional to 554,455.30, 830,516.55 and 461,143.30

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Solution

The fourth proportional to 554,455.30, 830,516.55 and 461,143.30 is: 690,744.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,455.30 : 830,516.55 = 461,143.30 : x
  2. Step 2: Convert to fraction form
    554,455.30/830,516.55 = 461,143.30/x
  3. Step 3: Cross multiply
    554,455.30x = 830,516.55 × 461,143.30
  4. Step 4: Simplify right side
    554,455.30x = 382,987,142,571.62
  5. Step 5: Solve for x
    x = 382,987,142,571.62/554,455.30
  6. Step 6: Final answer
    x = 690,744.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.