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Finding the Fourth Proportional to 450,693.10, 621,956.61 and 249,489.10

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Solution

The fourth proportional to 450,693.10, 621,956.61 and 249,489.10 is: 344,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,693.10 : 621,956.61 = 249,489.10 : x
  2. Step 2: Convert to fraction form
    450,693.10/621,956.61 = 249,489.10/x
  3. Step 3: Cross multiply
    450,693.10x = 621,956.61 × 249,489.10
  4. Step 4: Simplify right side
    450,693.10x = 155,171,394,867.95
  5. Step 5: Solve for x
    x = 155,171,394,867.95/450,693.10
  6. Step 6: Final answer
    x = 344,295.03

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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.