Home / 747,355.48-1,031,372.50-407,845.64

Finding the Fourth Proportional to 747,355.48, 1,031,372.50 and 407,845.64

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Solution

The fourth proportional to 747,355.48, 1,031,372.50 and 407,845.64 is: 562,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,355.48 : 1,031,372.50 = 407,845.64 : x
  2. Step 2: Convert to fraction form
    747,355.48/1,031,372.50 = 407,845.64/x
  3. Step 3: Cross multiply
    747,355.48x = 1,031,372.50 × 407,845.64
  4. Step 4: Simplify right side
    747,355.48x = 420,640,777,340.90
  5. Step 5: Solve for x
    x = 420,640,777,340.90/747,355.48
  6. Step 6: Final answer
    x = 562,838.95

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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.