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Finding the Fourth Proportional to 554,484.80, 830,560.80 and 461,172.80

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Solution

The fourth proportional to 554,484.80, 830,560.80 and 461,172.80 is: 690,789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,484.80 : 830,560.80 = 461,172.80 : x
  2. Step 2: Convert to fraction form
    554,484.80/830,560.80 = 461,172.80/x
  3. Step 3: Cross multiply
    554,484.80x = 830,560.80 × 461,172.80
  4. Step 4: Simplify right side
    554,484.80x = 383,032,049,706.24
  5. Step 5: Solve for x
    x = 383,032,049,706.24/554,484.80
  6. Step 6: Final answer
    x = 690,789.09

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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.