Home / 747,137.70-1,031,046.60-407,605.94

Finding the Fourth Proportional to 747,137.70, 1,031,046.60 and 407,605.94

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Solution

The fourth proportional to 747,137.70, 1,031,046.60 and 407,605.94 is: 562,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,137.70 : 1,031,046.60 = 407,605.94 : x
  2. Step 2: Convert to fraction form
    747,137.70/1,031,046.60 = 407,605.94/x
  3. Step 3: Cross multiply
    747,137.70x = 1,031,046.60 × 407,605.94
  4. Step 4: Simplify right side
    747,137.70x = 420,260,718,576.80
  5. Step 5: Solve for x
    x = 420,260,718,576.80/747,137.70
  6. Step 6: Final answer
    x = 562,494.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.