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Finding the Fourth Proportional to 414,005.55, 621,008.33 and 414,005.55

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Solution

The fourth proportional to 414,005.55, 621,008.33 and 414,005.55 is: 621,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,005.55 : 621,008.33 = 414,005.55 : x
  2. Step 2: Convert to fraction form
    414,005.55/621,008.33 = 414,005.55/x
  3. Step 3: Cross multiply
    414,005.55x = 621,008.33 × 414,005.55
  4. Step 4: Simplify right side
    414,005.55x = 257,100,893,146.20
  5. Step 5: Solve for x
    x = 257,100,893,146.20/414,005.55
  6. Step 6: Final answer
    x = 621,008.33

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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.