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Finding the Fourth Proportional to 450,662.88, 621,914.78 and 249,458.88

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Solution

The fourth proportional to 450,662.88, 621,914.78 and 249,458.88 is: 344,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,662.88 : 621,914.78 = 249,458.88 : x
  2. Step 2: Convert to fraction form
    450,662.88/621,914.78 = 249,458.88/x
  3. Step 3: Cross multiply
    450,662.88x = 621,914.78 × 249,458.88
  4. Step 4: Simplify right side
    450,662.88x = 155,142,164,474.25
  5. Step 5: Solve for x
    x = 155,142,164,474.25/450,662.88
  6. Step 6: Final answer
    x = 344,253.26

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1.5x scale

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.