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Finding the Fourth Proportional to 415,923.80, 624,000.90 and 275,955.80

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Solution

The fourth proportional to 415,923.80, 624,000.90 and 275,955.80 is: 414,010.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,923.80 : 624,000.90 = 275,955.80 : x
  2. Step 2: Convert to fraction form
    415,923.80/624,000.90 = 275,955.80/x
  3. Step 3: Cross multiply
    415,923.80x = 624,000.90 × 275,955.80
  4. Step 4: Simplify right side
    415,923.80x = 172,196,667,560.22
  5. Step 5: Solve for x
    x = 172,196,667,560.22/415,923.80
  6. Step 6: Final answer
    x = 414,010.13

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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.