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Finding the Fourth Proportional to 540,449.64, 745,717.86 and 339,154.92

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Solution

The fourth proportional to 540,449.64, 745,717.86 and 339,154.92 is: 467,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,449.64 : 745,717.86 = 339,154.92 : x
  2. Step 2: Convert to fraction form
    540,449.64/745,717.86 = 339,154.92/x
  3. Step 3: Cross multiply
    540,449.64x = 745,717.86 × 339,154.92
  4. Step 4: Simplify right side
    540,449.64x = 252,913,881,150.87
  5. Step 5: Solve for x
    x = 252,913,881,150.87/540,449.64
  6. Step 6: Final answer
    x = 467,969.38

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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.