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Finding the Fourth Proportional to 539,639.64, 744,698.85 and 294,624.39

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Solution

The fourth proportional to 539,639.64, 744,698.85 and 294,624.39 is: 406,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,639.64 : 744,698.85 = 294,624.39 : x
  2. Step 2: Convert to fraction form
    539,639.64/744,698.85 = 294,624.39/x
  3. Step 3: Cross multiply
    539,639.64x = 744,698.85 × 294,624.39
  4. Step 4: Simplify right side
    539,639.64x = 219,406,448,956.87
  5. Step 5: Solve for x
    x = 219,406,448,956.87/539,639.64
  6. Step 6: Final answer
    x = 406,579.56

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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.