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Finding the Fourth Proportional to 440,405.10, 617,811.30 and 440,405.10

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Solution

The fourth proportional to 440,405.10, 617,811.30 and 440,405.10 is: 617,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,405.10 : 617,811.30 = 440,405.10 : x
  2. Step 2: Convert to fraction form
    440,405.10/617,811.30 = 440,405.10/x
  3. Step 3: Cross multiply
    440,405.10x = 617,811.30 × 440,405.10
  4. Step 4: Simplify right side
    440,405.10x = 272,087,247,357.63
  5. Step 5: Solve for x
    x = 272,087,247,357.63/440,405.10
  6. Step 6: Final answer
    x = 617,811.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.