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Finding the Fourth Proportional to 432,004.35, 648,006.53 and 400,511.55

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Solution

The fourth proportional to 432,004.35, 648,006.53 and 400,511.55 is: 600,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,004.35 : 648,006.53 = 400,511.55 : x
  2. Step 2: Convert to fraction form
    432,004.35/648,006.53 = 400,511.55/x
  3. Step 3: Cross multiply
    432,004.35x = 648,006.53 × 400,511.55
  4. Step 4: Simplify right side
    432,004.35x = 259,534,097,737.86
  5. Step 5: Solve for x
    x = 259,534,097,737.86/432,004.35
  6. Step 6: Final answer
    x = 600,767.33

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1.5x scale

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.