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Finding the Fourth Proportional to 469,740.64, 648,722.64 and 439,647.52

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Solution

The fourth proportional to 469,740.64, 648,722.64 and 439,647.52 is: 607,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,740.64 : 648,722.64 = 439,647.52 : x
  2. Step 2: Convert to fraction form
    469,740.64/648,722.64 = 439,647.52/x
  3. Step 3: Cross multiply
    469,740.64x = 648,722.64 × 439,647.52
  4. Step 4: Simplify right side
    469,740.64x = 285,209,299,843.85
  5. Step 5: Solve for x
    x = 285,209,299,843.85/469,740.64
  6. Step 6: Final answer
    x = 607,163.35

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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.