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Finding the Fourth Proportional to 469,752.56, 648,426.64 and 278,765.92

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Solution

The fourth proportional to 469,752.56, 648,426.64 and 278,765.92 is: 384,796.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,752.56 : 648,426.64 = 278,765.92 : x
  2. Step 2: Convert to fraction form
    469,752.56/648,426.64 = 278,765.92/x
  3. Step 3: Cross multiply
    469,752.56x = 648,426.64 × 278,765.92
  4. Step 4: Simplify right side
    469,752.56x = 180,759,248,852.11
  5. Step 5: Solve for x
    x = 180,759,248,852.11/469,752.56
  6. Step 6: Final answer
    x = 384,796.73

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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.