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Finding the Fourth Proportional to 450,611.42, 621,844.98 and 249,407.42

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Solution

The fourth proportional to 450,611.42, 621,844.98 and 249,407.42 is: 344,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,611.42 : 621,844.98 = 249,407.42 : x
  2. Step 2: Convert to fraction form
    450,611.42/621,844.98 = 249,407.42/x
  3. Step 3: Cross multiply
    450,611.42x = 621,844.98 × 249,407.42
  4. Step 4: Simplify right side
    450,611.42x = 155,092,752,101.75
  5. Step 5: Solve for x
    x = 155,092,752,101.75/450,611.42
  6. Step 6: Final answer
    x = 344,182.92

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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.