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Finding the Fourth Proportional to 671,683.10, 1,006,212.45 and 404,650.40

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Solution

The fourth proportional to 671,683.10, 1,006,212.45 and 404,650.40 is: 606,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,683.10 : 1,006,212.45 = 404,650.40 : x
  2. Step 2: Convert to fraction form
    671,683.10/1,006,212.45 = 404,650.40/x
  3. Step 3: Cross multiply
    671,683.10x = 1,006,212.45 × 404,650.40
  4. Step 4: Simplify right side
    671,683.10x = 407,164,270,377.48
  5. Step 5: Solve for x
    x = 407,164,270,377.48/671,683.10
  6. Step 6: Final answer
    x = 606,185.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.