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Finding the Fourth Proportional to 462,401.40, 693,602.10 and 440,628.60

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Solution

The fourth proportional to 462,401.40, 693,602.10 and 440,628.60 is: 660,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,401.40 : 693,602.10 = 440,628.60 : x
  2. Step 2: Convert to fraction form
    462,401.40/693,602.10 = 440,628.60/x
  3. Step 3: Cross multiply
    462,401.40x = 693,602.10 × 440,628.60
  4. Step 4: Simplify right side
    462,401.40x = 305,620,922,280.06
  5. Step 5: Solve for x
    x = 305,620,922,280.06/462,401.40
  6. Step 6: Final answer
    x = 660,942.90

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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.