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Finding the Fourth Proportional to 469,733.62, 648,400.50 and 278,746.96

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Solution

The fourth proportional to 469,733.62, 648,400.50 and 278,746.96 is: 384,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,733.62 : 648,400.50 = 278,746.96 : x
  2. Step 2: Convert to fraction form
    469,733.62/648,400.50 = 278,746.96/x
  3. Step 3: Cross multiply
    469,733.62x = 648,400.50 × 278,746.96
  4. Step 4: Simplify right side
    469,733.62x = 180,739,668,237.48
  5. Step 5: Solve for x
    x = 180,739,668,237.48/469,733.62
  6. Step 6: Final answer
    x = 384,770.56

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1.5x scale

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.