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Finding the Fourth Proportional to 440,400.30, 617,960.10 and 440,400.30

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Solution

The fourth proportional to 440,400.30, 617,960.10 and 440,400.30 is: 617,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,400.30 : 617,960.10 = 440,400.30 : x
  2. Step 2: Convert to fraction form
    440,400.30/617,960.10 = 440,400.30/x
  3. Step 3: Cross multiply
    440,400.30x = 617,960.10 × 440,400.30
  4. Step 4: Simplify right side
    440,400.30x = 272,149,813,428.03
  5. Step 5: Solve for x
    x = 272,149,813,428.03/440,400.30
  6. Step 6: Final answer
    x = 617,960.10

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1.5x scale

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.