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Finding the Fourth Proportional to 650,955.44, 898,424.94 and 389,293.65

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Solution

The fourth proportional to 650,955.44, 898,424.94 and 389,293.65 is: 537,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,955.44 : 898,424.94 = 389,293.65 : x
  2. Step 2: Convert to fraction form
    650,955.44/898,424.94 = 389,293.65/x
  3. Step 3: Cross multiply
    650,955.44x = 898,424.94 × 389,293.65
  4. Step 4: Simplify right side
    650,955.44x = 349,751,124,143.63
  5. Step 5: Solve for x
    x = 349,751,124,143.63/650,955.44
  6. Step 6: Final answer
    x = 537,288.89

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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.