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Finding the Fourth Proportional to 450,811.50, 622,139.34 and 249,607.50

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Solution

The fourth proportional to 450,811.50, 622,139.34 and 249,607.50 is: 344,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,811.50 : 622,139.34 = 249,607.50 : x
  2. Step 2: Convert to fraction form
    450,811.50/622,139.34 = 249,607.50/x
  3. Step 3: Cross multiply
    450,811.50x = 622,139.34 × 249,607.50
  4. Step 4: Simplify right side
    450,811.50x = 155,290,645,309.05
  5. Step 5: Solve for x
    x = 155,290,645,309.05/450,811.50
  6. Step 6: Final answer
    x = 344,469.13

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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.